Users Discussion Board

A SIRISHA 10 years ago

A MAN SELL TWO HORSES AT THE SAME AMOUNT , ON ONE HE GAINS 5% AND ON THE OTHER HE LOSSES 5 % ,. HIS GAIN OR LOSS PERCENT IN THE WHOLE TRANSACTION IS ?

Reply Like? Yes (35) | No (5)

mousumi mohapatra 10 years ago

when the selling price of 2 things are same and one is sold at x% loss and other at x% gain there is always a loss in the transaction given by: r^2/100%
so the answer to your question is 4%.
5*5/100%

Like? Yes (18) | No (9)

Advertisements

A SIRISHA 10 years ago

A SHOPKEEPER HAS CERTAIN NUMBER OF EGGS OF WHICH 5% ARE FOUND TO BE BROKEN . HE SELLS 93% OF THE REMAINDER AND STILL HAS 266 EGGS LEFT . HOE MANY EGGS DID HE ORIGINALLY HAVE?

Reply Like? Yes | No

Deepak prajapati 10 years ago

let total no of eggs=x.
Broken egg=x/20.
remainder=(x-(x/20))=19x/20
acc to qusn
(19x/20)-((19x/20)*(93/100))=266
after solving above equsn
x=4000. ans

Like? Yes (4) | No (1)

A SIRISHA 10 years ago

A BUSINESS MAN MARKED THE PRICE OF HIS GOODS 30% MORE THAN HIS CP . HE THEN SELLS 1/4 OF HIS STOCK AT A DISCOUNT OF 15% , AND HALF OF THE STOCK AT THE MARKED PRICE, AND THE REST AT A DISCOUNT OF 30%. FIND THE GAIN %?

Reply Like? Yes (2) | No (2)

Deepak prajapati 10 years ago

let total no of stock=x
cp=100
cp of total stock=100x
marked price=130/qnty
total sp=(x/4)(130-(39/2))+((x/2)*130)+((x/4)(130-39)
after solving
total sp=115.37x
so,profit=sp-cp=15.37x
so,%gain=((15.37x/(100x))*100)=15.37%.ans

Like? Yes (8) | No (7)

A SIRISHA 10 years ago

A BORROWED RS 800@ 6% AND B BORROWED RS. 600@ 10%.AFTER HOW MUCH TIME WILL THEY BOTH HAVE EQUAL DEBTS?

Reply Like? Yes (11) | No (1)

Deepak prajapati 10 years ago

let after time T the have eqaul debts
for A
simple interest=48T
for B
SI=60T
ATP
800+48T=600+60T
=>T=16.67year

Like? Yes (11) | No

A SIRISHA 10 years ago

A MAN BUYS 6 DOZEN EGGS FOR RS. 10.80. 12 EGGS ARE FOUND TO BE ROTTEN AND THE REST ARE SOLD AT 5 FOR RE.1 . FIND HIS % GAIN OR% LOSS.

Reply Like? Yes (32) | No (3)

Deepak prajapati 10 years ago

ans will be (((1.2)/10.8)*100)=11.11
gain %=11.11

Like? Yes (10) | No

A SIRISHA 10 years ago

A SUM OF MONEY DOUBLES ITSELF AT COMPOUND INTEREST IN 15 YEARS . IN HOW MANY YEARS IT WILL BECOME 8 TIMES ?

Reply Like? Yes (15) | No (5)

Deepak prajapati 10 years ago

ATP
2P=p(1+r/100)^15
(1+r/100)=2^(1/15)
so
8p=p(1+r/100)^T
2^3=2^(T/15)
so T=45yrs

Like? Yes (24) | No (18)

B Yellamma 10 years ago

It can also be in a simple way
Always CI increases exponentially
Given,
The sum becomes 2 times in 15 years
i.e, 2 times ------------> 15 years
2^3(8years). ------------->15×3 years
So answer is 45 years

Like? Yes (38) | No (16)

A SIRISHA 10 years ago

SHEILA PURCHASES 20 APPLES AT RS. 15/KG AND ANOTHER 10 KG APPLES AT RS.20/KG . WHAT IS THE AVERAGE COST PER KG ?

Reply Like? Yes (44) | No (4)

Deepak prajapati 10 years ago

500/30=16.67RS/kg

Like? Yes (5) | No (2)

A SIRISHA 10 years ago

THE PRICE OF A BOOK INCLUDES 10% PRINTING COST , 20% PAPER COST , AND ANOTHER 15% LAB0UR COST. IF THE REMAINDER IS RS. 110, THEN WHAT IS THE TOTAL PRICE OF THE BOOK ?

Reply Like? Yes (13) | No

Deepak prajapati 10 years ago

total price will be 200

Like? Yes (3) | No (1)

shailendra parashar 10 years ago

There are 5 letters and five addressed envelops. the number of ways in which all the letters can be put in wrong envelops is
Read more at http://www.m4maths.com/placement-puzzles.php?ISSOLVED=&page=2&LPP=10&SOURCE=amcat&MYPUZZLE=&TOPIC=Numerical%20Ability&SUB_TOPIC=Probability#FmMxa4vzYtQbcbdX.99

Reply Like? Yes | No

Deepak prajapati 10 years ago

total no of ways n object be placed in r place so that no object is on right place is(where n=r)
is
n!-(nc1)(n-1)!+(nc2)(n-2)!- --------- +((-1)^n)(ncn)(n-n)!
here n=5
putting the value of n in above equation we got
n=44.

Like? Yes | No

Anoop Tiwari 10 years ago

Sherlock Homes and Dr. Watson have to travel from Rajeev Gandhi chowk to Indira Gandhi International Airport via the metro. They have enough coins of 1, 5, 10 and 25 paise. Sherlock Homes agree to pay for Dr. Watson only if he tells all the possible combinations of coins that can be used to pay for the ticket.How many combinations are possible if they get an international dignity discount of 10%, i.e. the fare is 45 paise ? a) 45 b)44 c) 39 d) 36

Reply Like? Yes | No

Imran Zia 10 years ago

Find pattern
3,4,6,8,12,14,18,?

Reply Like? Yes | No

Anoop Tiwari 10 years ago

How many combinations are possible if they get an international dignity discount of 10%, i.e. the fare is 45 paise ? a) 45 b)44 c) 39 d) 36

Reply Like? Yes | No

A SIRISHA 10 years ago

What is the remainder when 4^1012 is divided by 7 ?

Reply Like? Yes (6) | No

Rabish Ranjan 10 years ago

Ans-" C-3 "
Solution:
{ 4^1012+(-3^1012) } = 7^1012
where power is in even then on dividing by 7 we get 3 as reminder .

Like? Yes | No (17)

A SIRISHA 10 years ago

The multiplication of a 3 digit number XY5 with digit Z yields X215 . What is X+Y+Z equals to ?

Reply Like? Yes (15) | No (6)

Sneha Singh 10 years ago

X=1, Y=3, Z=9
X+Y+Z= 13

Like? Yes (5) | No (3)

NITIN DEOLI 10 years ago

DETAILED SOLUTION?

Like? Yes (17) | No (1)

A SIRISHA 10 years ago

A is thrice as efficient as B and hence completes a work in 40 days less than the number of days taken by B.
What will be the number of days taken by both of them when working together ?

Reply Like? Yes (9) | No

ashutosh shukla 10 years ago

(ET)a =(ET)b i.e 3(t-40)=1*t;

Like? Yes | No

A SIRISHA 10 years ago

IF M% OF M + N% OF N = 2% OF (M*N) ,THEN WHAT PERCENTAGE OF M IS N ? WITH EXPLANATION

OPTION
A) 50%
B) 75%
C) 100%
D) CANNOT BE DETERMINED DUE TO INSUFFICIENT DATA

Reply Like? Yes (3) | No

ashutosh shukla 10 years ago

m*m + n*n=2mn; i.e m=n. 50% ans

Like? Yes | No (1)

Sneha Singh 10 years ago

50% is the correct & verified ans.

Like? Yes | No (2)

Ramakrishna 10 years ago

Q: A 1.2m girl see a baloon moving in horizontal line at height of 88.2m at angle of inclination of 60 degrees from her eyes. After some time the angle of elevation is 30 degrees. Find the distance travelled by baloon in his interval?
I NEED COMPLETE SOLUTION PLS HELP ME

a) 91root3 b) 44root3 c) 58root3 d) 15root3

Reply Like? Yes | No

Sneha Singh 10 years ago

the ans. is c)58root3 ... apply tan ratios in both cases & take the perpendicular=87m. in both cases

Like? Yes | No

pawan kumar 10 years ago

my amcat score is ........
eng : 82.9 %le
comp prog. : 99.3 %le
log. ability :62 %le
quants : 38 %le
cs: 58 %le

can i get any calls from mnc.. ?

Reply Like? Yes | No (1)

Anshu sharma 10 years ago

is question from m4 Maths come in amca and which book best for amcat preparation and if you have study material than poz send me on sharmaakanksha37@gmail.com.plzzz and thanx im advance

Like? Yes | No

SAI KIRAN to priyanka bhardwaj 10 years ago

Preparing for CAT ?

Reply Like? Yes | No

Ramakrishna 10 years ago

Q: There were 27 boys standing in a line. Amar was shifted 3 places to his right and occupied the middle position. What was his original position from left? I NEED COMPLETE SOLUTION PLS HELP ME

Reply Like? Yes | No

Devendra Marghade 10 years ago

11th

In the total 27 boys, middle position will be 14th
Before shifting to 3 places to right i.e. at 14th , he would be at 11th position from the left.

Like? Yes (1) | No

meruvapavani 10 years ago

11th

In the total 27 boys, middle position will be 14th
Before shifting to 3 places to right i.e. at 14th , he would be at 11th position from the left

Like? Yes (1) | No

prajjawal sharma 10 years ago

6(3 – x) –5 (2x – 4) = 4(3x–) + 14
In the above equation the value of x is

Reply Like? Yes | No

anusekhar 10 years ago

hiee frnds ...........my amcat scores are : engsih - 56 percentile , quantitative aptitude - 28 per , logical - 42.2 % , computer programming -78 .02 per nd computer scince - 76.2 per .......is der any chances of getting calls from mncs like hcl , accenture? if u knw plz let me knw frnds.........waiting fa u reply

Reply Like? Yes | No

Nithiya 10 years ago

can anyone tell me,how to prepare for ibm english assessment section?
send me if u have any material..id is :nithya.gasc@gmail.com

Reply Like? Yes (1) | No

sanjay 10 years ago

synonym of contagious
asked in amcat on 16 nov

Reply Like? Yes | No

Shreya Banerjee 10 years ago

contagious means infectious, epidemic kind of.. synonym can be infective, epizootic, transferable, etc.

Like? Yes (3) | No

Kushagra Tiwari 10 years ago

contagious --> (of a disease) spread from one person or organism to another, typically by direct contact.
Ex-->"a contagious disease"
synonyms: infectious, communicable, transmittable, transmissible, transferable, spreadable;

Like? Yes (2) | No

MINTU KUMAR GUPTA 10 years ago

my amcat score is ........
verbal : 95 %le
comp prog. : 93 %le
log. ability : 87 %le
quants : 76 %le
i am pursuing b.tech with ece and have secured 58 % ,64.8 % and 74% in 10th, 12th and b.tech respectively......
can i get any calls from mnc.. ?

Reply Like? Yes (2) | No

Mithun Kumar Kesari 10 years ago

yes brother you can get calls.

Like? Yes | No

Abhinav 10 years ago

Brijesh purchased an item online from Dubai for 540 Dirham. the exchange rate was 1000 INR for 13.50 Dirham. Brijesh’s bank charged him 2% for the transaction? The total cost of item was

(a) 40080 INA
(b) 40880 INR
(c) 48000 INA
(d) 40800 INR

Reply Like? Yes (2) | No

Deepak prajapati 10 years ago

given that
cost price in dirham=540
13.50 for 1000
for 540 it will be 4000
(40000+2% of 40000)=40800 INR so, ans will be opstion d

Like? Yes (3) | No

abhin 10 years ago

i want ramesh and she to be the captain for the rest of the year.

a her to be the captains for the rest of the year.
b she to be the captain for the rest of the year.
c her as the captains for the rest of the year.
d she both be captains for the rest of the year
Read more at http://www.m4maths.com/placement-puzzles.php?SOURCE=amcat&TOPIC=Verbal%20Ability&SUB_TOPIC=One%20Word%20Substitution#eAmAzpwJCyfZtR7q.99

Reply Like? Yes | No

Shaik Aarif Mohammed 10 years ago

the diameter of circular garden is 28 m .a road 1.75m wide runs around it.find the cost of gravelling the road at rs 10 per m2

Reply Like? Yes | No

Md Ali 10 years ago

ans: approx. rs 7846

Like? Yes | No

bhavani 10 years ago

Alan is taller than Bob
Carol is taller than Diane
Bob is taller than Diane.
Which one of the following conclusions can be drawn?
1.Carol can never be the tallest.
2.Bob is at least as tall as Alan.
3.Carol can never be the same height as Alan.
4.Carol and Bob may be the same height.
5.Carol is definitely taller than Bob.

Reply Like? Yes (2) | No (1)

tirupathi reddy 10 years ago

1,4 options follow

Like? Yes (1) | No (1)

SUBHASH TULSYAN 10 years ago

4..........is the answer

Like? Yes (1) | No

SUBHASH TULSYAN 10 years ago

tirupathi read the question carefully ...only one option is correct

Like? Yes (1) | No

Deepak prajapati 10 years ago

letters represent 1st letter of name
b>a// condition 1
d>c//condition 2
d * b * a * //condition 3
here star represents the position of carlo(d is smallest)
so acco to given condition only 4 stisfied
so ans will be option 4

Like? Yes (1) | No (1)

MAHARAJAN.G 10 years ago

ans 4 , because carol and bob is taller than diane so they must be same height

Like? Yes (1) | No (1)

Md Ali 10 years ago

only the conclusion 4th satisfies...

Like? Yes (1) | No

ashutosh shukla 10 years ago

4 can be answer as height of carol is not given exactly

Like? Yes (1) | No

ARJUN PRASAD 10 years ago

4 options is satisfied only.......

Like? Yes (1) | No (1)

ARUP DUTTA 10 years ago

what is the remainder when 7^99 is divided by 2400??anyone know how to solve this?

Reply Like? Yes (3) | No (1)

MAHARAJAN.G 10 years ago

7^1(7)/2400=7
7^2(49)/2400=49
7^3(343)/2400=343
7^4(2401)/2400=1
7^5(remainder of 7^4×7^1=7)/2400=7
Now since after every 4 terms we are getting the same set of remainders that is 7,49,343,1 so we have a cycle of 4 and now we just need to find 99 is which term in the cycle so 99/4=3... So the third term of the cycle is our remainder which is 343

Like? Yes (5) | No (6)

k srinivas 10 years ago

todays puzzle answer is 980. but it is not there.
srinivas 9849701749

Reply Like? Yes (2) | No (2)

abhishek narayan 10 years ago

yup, i also got that.

Like? Yes | No

RAKESH 10 years ago

total = 147 t-shirts , 2/3 rd = 98, rest=49

if x be printed price then
( 98 * 119x/100 + 49x ) - 147 * 88x/100 = 3626
=> 238x + 100x - 264x = 74*100
=> 74x = 74*100
=> x = 100

Like? Yes (1) | No

abhishek narayan 10 years ago

i got the question initially in wrong way. taking t-shirt = 15

Like? Yes | No

Teja to priyatham reddy gudipati 10 years ago

HI priyatham first of all congrats... for clearing infy written test and plz let me know the paper pattern...

thanks in advance....

Reply Like? Yes (1) | No

Ramakrishna to abhishek narayan 10 years ago

Q: In a row of boys, Rajan is 10th from right and Suraj is 10th from left. when Rajan and Suraj interchange their positions. now suraj is 27th from left. What is Rajan position from right? I NEED COMPLETE SOLUTION

Reply Like? Yes (27) | No (3)

abhishek narayan 10 years ago

after interchange now we got that there are 16 students in between rajan and suraj. So, Rajan position is 16+10=27th from right.

Like? Yes (8) | No (3)

lekha gupta 10 years ago

please mail me infosys placement papers. my mail id is lekhagupta92@gmail.com. pleaseeeeee.

Reply Like? Yes | No

lekha gupta 10 years ago

can anyone tell me how to prepare for infosys written exam, because i m feeling bit difficult to crack it.........

Reply Like? Yes | No

abhishek narayan 10 years ago

try to solve easy questions first as you can switch to any question but time is limited. for each sections different time is slotted. you will get sufficient time for solving quantitative aptitude(10 ques.- 35 min). Try to concentrate on verbal(40 ques-35 min). If, passage comes tough try solve it in last.For Analytic thinking, practice Syllogism( of higher difficulty).Other questions are normal.

Like? Yes (1) | No

lekha gupta 10 years ago

anybody who has written exam of infosys on 23rd. nov.

Reply Like? Yes | No

husna tabassum 10 years ago

pls say me whr to refer questions to crack infosys written test

Like? Yes | No

Raj 11 years ago

The average age a family of 6 members is 22yrs. if the age of the youngest member is 7 yrs, then what was the averege age of the family at the time of the birth of the youngest member

Reply Like? Yes (1) | No

Akash Verma 11 years ago

(6*22-7-5*7)/5=18,, Subtracting the age of the youngest member and 7 years from each member , since average age asked during the birth of the youngest member

Like? Yes (4) | No

Shaik Aarif Mohammed 10 years ago

average age of 6 members=22=>22*6=>132-7=125/5=25

Like? Yes | No (1)

Shaik Aarif Mohammed 10 years ago

average age of 6 members=22=>22*6=>132-7=125/5=25 -7=18

Like? Yes (1) | No

Raj 11 years ago

The average of marks obtained by 120 candidates in an examination is 35. if the average marks of passed candidates is 39 and failed candidates is 15. what is the number of candidates who passes the examination.

Reply Like? Yes | No

abhishek narayan 10 years ago

let x be the no. of candidates passed.
39x+15(120-x)=35*120.
x=100

Like? Yes (2) | No

Deepak prajapati to RAKESH 11 years ago

Find the number of six-digit numbers that can be formed with the digits 1, 2, 3, and 4, if all the digits are to appear at least once?

Reply Like? Yes (1) | No

RAKESH 10 years ago

single digit 3 times repeated => 111234 , 222134, 333124, 444123 => 4* 6!/3! = 480

2 differ digit 2 times repeated => 112234,..............., such 6 types => 6* 6!/ 2!*2! = 1080

total = 480 + 1080 = 1560

is it right ?

Like? Yes (2) | No

Nithiya 10 years ago

hi rakesh ,can u explain how 6!/3! came?

Like? Yes | No

llamar 10 years ago

first we have to select extra two numbers to form six digits
so, no ways select two numbers from 1,2,3,4 is 4C2=6
no of ways we can arrange six digits in six places is 6! but out of two of the repeated
so 6!/2!
so total no of six digits possible is 6*(6!/2!)=3*720=2160

Like? Yes | No

Deepak prajapati to RAKESH 11 years ago

Two distinct integers are selected at random from 1, 2, 3, ... 100 and multiplied with each other. Find the probability (to two decimal places) that the product is divisible by 3

Reply Like? Yes | No

abhishek narayan 10 years ago

(33c1*67c1+33c2)/100c2=2739/4950=0.55

Like? Yes (2) | No

Perrin 11 years ago

hii friendzz..
ny buddy who got Infosys joining of 8 dec please comment here about there travelling plan...particularly who are planning to go from delhi to banglore on 6 dec via flight.

Reply Like? Yes | No

Sucharita Sahu 10 years ago

may i know after the written test, in how many days you got the mail for the next round...

Like? Yes | No

Ramakrishna to A SIRISHA 11 years ago

Q: In a 200m race A beat B by 10m or 2 seconds. What is A"s time over the race? I NEED COPLETE SOLUTION

a) 38sec b) 40 c) 42 d) none

Reply Like? Yes (19) | No

abhishek narayan 11 years ago

let the speed and time taken by B be x m/s and t sec respectively.
t*x=190
(t+2)*x=200
t=38 sec

Like? Yes (11) | No (1)

pooja singh 11 years ago

I had solved 3 or 4 question nd still didnot get any point ,will any1 tell me the procedure of getting score...

Reply Like? Yes | No

Emanuel Abhishek Murmu 11 years ago

maybe your answers were wrong.

Like? Yes | No

Naveen 11 years ago

point are only distributed on todays puzzle soltuion

Like? Yes | No

sachin pandey 11 years ago

a committee of five is to be chosen from a froup of 9 people the probability that a certain a certain married couple will either serve together or not at all?

Reply Like? Yes (1) | No

SUBHASH TULSYAN 11 years ago

(2c2*7c3/9c5)+(7c5/9c5)

Like? Yes | No

priyanka bhardwaj 11 years ago

QUE: if a shopkeeper gives a 40% discount on an item n he still manages to make 20% profit. then what will the profit if he gives 25% discount.

Reply Like? Yes | No

pooja singh 11 years ago

profit will be of 50rps

Like? Yes (1) | No (1)

Rakesh Kumar Gupta 11 years ago

he gains 50% profit.

Like? Yes (3) | No

priyanka bhardwaj 10 years ago

how u did this?.. can u plz xplain the steps

Like? Yes | No

suresh kachhawa to Nikita Jain 11 years ago

our polticians should be educated or dont alll people does not know

Reply Like? Yes | No

payal saha 11 years ago

somebody pls tell me the new paper pattern of ibm pls...

Reply Like? Yes | No

Deepak prajapati 11 years ago

An engineer decide to complete a work in 20 day and hired sixty men,after working for five days,he realize that,only 1/5th of the work is completed.if he wants to complete the work as he planned,how many more men he has to hire

Reply Like? Yes | No

ARJUN PRASAD 11 years ago

in first 5 days work done=60*5=300 mandays=1/5 of work ie 20% work done in 5 days
work left=80% and it is done by 1200 mandays.
since 15 days are left to complete the work,so 1200/15=80 men ie he needs 20 men more because 60 men are already working.... :)

Like? Yes (4) | No

pooja singh 11 years ago

total work should be done in 20 days =1200(60*20)
work done by 60 men in first 5 days=300(60*5)= 1/5 of work
now 15 days are lift to complete the work so,1days work=1/15 and 1200 men complete the work =1200/15=80 men so,20 more men are required (i.e 80-60=20)

Like? Yes | No

Deepak prajapati 11 years ago

twelve engineers can complete a task in 7 Hours.12 engineers started the task at 10 AM but starting from 1PM, One engineer leaving every Hours,At what time the task gets completed.

Reply Like? Yes | No

abhishek narayan 11 years ago

12e - 7hr - 1w
12e - 3hr - 3/7w.
also, 1e - 1hr - 1/(7*12)w.
3/7w+11/84w+10/84w+9/84w+8/84w+7/84w=81/84w completed up to 6p.m.
now, remaining 3/84w=1/28w will be completed by remaining 6e in
1e - 1hr - 1/84w
6e - 1hr - 1/14w
6e - 1/28w - 1/2hr.
hence, work will be completed by 6.30pm or in 17/2hr.

Like? Yes (2) | No

balu 11 years ago

Total=12e-7hr=12*7=84 units
-----------------------------------------
completed work is10-1pm is=3hr,
so 12*3=36 units
Remaining is=84-36=48 units
------------------------------------------
1-2pm=11
2-3pm=10,
3-4pm=9,
4-5pm=8,
5-6pm=7,
6-7pm=6.....
we need to reach 48 units of work..
11+10+9+8+7=45,
now 3 more is extra day remaining next =6hr ....3/6=1/2=30min
so ans is=6:30 mins

Like? Yes (1) | No

Anila S Tirkey 11 years ago

Que. There are total 15 people. 7 speaks french and 8 speaks spanish. 3 do not speak any language. Which part of total people speaks both languages?
Can I please get an answer for this?

Reply Like? Yes (4) | No (2)

balu 11 years ago

Total:u=15,
french:f+b=7 spanish:s+b=8
3 do not speak any language:n=3
n=u-(f+b+s)...
(f+b)+s=12
so s=5,f=4,b=3
so total people speaks both language=3

Like? Yes (2) | No (2)

ravi ranjan 11 years ago

my amcat score eng 80
math 78
cp 98
reasonig 68
is there any chances of getting calls from good companies

Reply Like? Yes (1) | No

Krishnan Jhunjhunwala 11 years ago

I m preparing for amcat test. I m very weak in quant. So plz suggest me from were i have 2 study or any book i have 2 refer for amcat.
Thanks...

Reply Like? Yes | No

Deepak prajapati 11 years ago

go through arun sharma LOD 1...
and M4math.com

Like? Yes | No

A SIRISHA 11 years ago

If 1 1 1 1= R
2 2 2 2= T
3 3 3 3= E
4 4 4 4= N
Then
5 5 5 5= ?
????????????????????

Reply Like? Yes (7) | No (3)

Sravanthi 11 years ago

1+1+1+1=Fou(r)=R
2+2+2+2=Eigh(t)=T
3+3+3+3=Twelv(e)=E
4+4+4+4=Sixtee(n)=N
5+5+5+5=Twent(y)=Y

Like? Yes (14) | No (3)

Amar Poonia 11 years ago

Y (last charachter of addtion of all digits). e.g. 5+5+5+5=20 Twent Y

Like? Yes (2) | No

balu 11 years ago

Your super sravanthi....ur right ans

Like? Yes (2) | No

vusthili nirmala to RAKESH 11 years ago

Hi rakesh......I am weak in solving problems of area, probability can u help me which material i have to follow......

Reply Like? Yes | No

RAKESH 11 years ago

solve all the problems of that chapter two or three times from any book.

Like? Yes (1) | No

mac 11 years ago

can somebody please send l & t infotech latest 2014 placement papers to mac071092@gmail.com ?

Reply Like? Yes | No

mac 11 years ago

can somebody please send l & t infotech latest 2014 placement papers to mac071092@gmail.com ?

Reply Like? Yes | No

Ajinkya Kulkarni to RAKESH 11 years ago

Hi Rakesh,I am kind of weak in probability related problems specially playing cards type ...can you please suggest me study material for that ...

Reply Like? Yes | No

RAKESH 11 years ago

play card games, u will know about it.

in 52 cards, 26 are of black & 26 are of red colours.
spade & club are of black suit while heart & diamond of red suit.
A standard pack of 52 cards has 4 suits (Hearts, Diamonds, Clubs, and Spades) with thirteen cards in each suit (Ace,2,3,4,5,6,7,8,9,10, Jack, Queen, and King). So, there are 4 Jacks, 4 kings , 4 aces & 4 queens in a deck (one of each of the 4 suits).

Like? Yes (3) | No

llamar 11 years ago

anybody have a hcl placement papers send to me plz.......... , with solutions or answers
mail id: llamarcriado006@gmail.com

Reply Like? Yes | No

llamar 11 years ago

anybody have a hcl placement papers send to me plz.......... , with solutions or answers

Reply Like? Yes | No

Ramakrishna 11 years ago

Q: Aam Aadmi party won how many loka sabha seats in general election 2014?

Reply Like? Yes | No

Deepak prajapati 11 years ago

total no of seats won by AAp in 2014 loka sabha=4

Like? Yes (1) | No

abhishek tiwari 11 years ago

Two trains starts at the same time from Mumbai and Pune and proceed toward each other at the rate of 60 km and 40 km per hour respectively.
When they meet,it is found that one train has travelled 20 km more than the other.Find the distance between Mumbai and Pune.

Reply Like? Yes (9) | No (3)

abhishek narayan 11 years ago

let the distance be x.
relative speed =60-(-40)=100km/h
time taken for both to meet = x/100 hr.
Given, 60x/100 - 40x/100 = 20.
x=100 km.

Like? Yes (14) | No (8)

Deepak prajapati 11 years ago

Mumbai || Pune
V1=60 meeting point V2=40
| ||
x+20 x
at meeting point
(x+20)/60=x/40
so,x=40
total distance=x+x+20=100 ans.

Like? Yes (11) | No (4)

pooja singh 11 years ago

relative speed of 1st train =60 km/hr,other train =40km/hr. let distance travel by 2nd train be x nd distance travel by 2nd train x+20,nw t for 1st train=(x+20)/60=x/40..then =40 nd total distance will be =100

Like? Yes (7) | No (3)

SUCHETA BISWAS 11 years ago

for what maximun value of n will the expression 10200!/504^n be an integer?

Reply Like? Yes | No (3)

SUCHETA BISWAS 11 years ago

Find the remainder when 59^28 is divided by 7

Reply Like? Yes | No (3)

UPENDRA KUMAR GUPTA 11 years ago

contact me 7699331746

Like? Yes | No

ASHISH KUMAR 11 years ago

Ans is 1 if I try 59^28 mod 7

Like? Yes | No

prem kumar chaudhary to susmita patsa 11 years ago

how will apply for mind tree pls tell me
?

Reply Like? Yes | No (1)

bikash tiwari 11 years ago

i dont know ..........

Like? Yes | No

Neha Ghosh 11 years ago

Any body know of the company R System? If yes then please reply...about the campus drives and the question types!! at ghoshn598@gmail.com

Reply Like? Yes | No

Mani Shankar 11 years ago

call me 8802303134

Like? Yes | No

ARJUN PRASAD 11 years ago

solve it.....
9,19,41,?,209

Reply Like? Yes | No

swarna 11 years ago

ans is 91
sol: 2^3+1, 2^4+1*3, 2^5+ 3*3 , 2^6 + 9*3 ...

Like? Yes (1) | No

Deepak prajapati 11 years ago

2^3+3^0=9
2^4+3^1=19
2^5+3^2=41
2^6+3^3=91
2^7+3^4=209
so ans will be 91

Like? Yes (2) | No

RAKESH 11 years ago

Qn. The number of distinct triangles with integral valued sides if perimeter is 14.
a) 2 b) 3 c) 4 d) 5 e) 6

Reply Like? Yes (12) | No

abhishek narayan 11 years ago

c) 4 (3,5,6),(4,4,6),(5,5,4),(6,6,2)

Like? Yes (2) | No

llamar 10 years ago

(3,5,6),(4,4,6),(5,5,4),(6,6,2)
yes ans (c)

Like? Yes | No (1)

krishna teja 11 years ago

My score is
Module Name Module Score Module Percentile
English 420 29
Quantitative Ability 575 76
Computer Programming 665 99
Logical Ability 545 79
Computer Science 407 59

what r my chances of getting calls from companies??Please reply..

Reply Like? Yes | No

Alok sahoo 11 years ago

i want to attend the upcoming elitmus test.Please tell me on which subject should i concentrate and how should i prepare for elitmus

Reply Like? Yes | No (2)

MAHARAJAN.G 11 years ago

hi friends my name is g.maharajan studing in kalasalingam university 1st year b.tech mechanical

Reply Like? Yes | No

bikash tiwari 11 years ago

given x=123456 and z=x-y then for how many values of y ,z value found is divide by 48,,98,105 ???

Reply Like? Yes | No

abhishek narayan 11 years ago

L.C.M of 48,98,105 is 11760.
123456/11760=10.49
so nearest least integer is 10.
Hence, for 10 values. ans

Like? Yes (2) | No

bhanu prakash reddy a 11 years ago

in how many ways can 44 people be divided into 22 couples

Reply Like? Yes (2) | No

Deepak prajapati 11 years ago

(44c2)/2=473
so the ans will be 473

Like? Yes (4) | No (10)

kranthi 11 years ago

43*22
so answer will be 946

Like? Yes (3) | No (5)

Rakesh Thota 9 years ago

Short cut how many ways n people be divided into n/2 couples
(n!)/{(2!)n/2 (n/2)!} so ans is b. (44!)/{(2!)22 (22!)}

Like? Yes (7) | No (5)

Anshul Chaurasia 8 years ago

Shortcut how many ways n people be divided into n/2 couples
(n!)/{(2!)n/2 (n/2)!} so ans is b. (44!)/{(2!)22 (22!)}

Like? Yes (3) | No (2)

joseph 7 years ago

n!/{2!*(n/2)(n/2)!}= 44!/{2!*22*22!}

Like? Yes (1) | No

manikandan.T 6 years ago

I am assuming that by couples you meant pairs

No. of ways of selecting 1st pair = 44C2

No. of ways of selecting 2nd pair = 42C2

⋅

⋅

No. of ways of selecting 22nd pair = 2C2

∴ No. of ways of selecting 22 pairs =44C2⋅42C2⋅40C2…2C2

=44⋅432⋅42⋅412…2⋅12

=44!222

But the above also takes into account the order in which pairs are choosen which we do not want.

∴ we need to divide the above by 22! to take care of the permution.

Hence, No. of ways of selecting 22 pairs =44!22!⋅222

Thanks Stev Iones for correcting the error.

Like? Yes | No

Prakash kumar Pariari 11 years ago

how many rectangles can be formed out of a chess board? I need a proper explanation.

Reply Like? Yes | No

abhishek narayan 11 years ago

for a n*m chessboard, there are n+1 lines that form the rows and m+1 lines that form the columns. A rectangle will be bound by two of these rows and two of these columns, so the number of rectangles is given by (n+1C2)*(m+1C2).
as here n=m=8.
so, no. of rectangles = 9c2*9c2=36*36=1296

Like? Yes (1) | No

Rishikesh 11 years ago

how many pairs of letters in word GOVERNMENT which has many letters in word as alphabet

Reply Like? Yes | No (2)

padmaja 11 years ago

4 they are GM,OR,MN,RN

Like? Yes | No

A SIRISHA to RAKESH 11 years ago

Q. In an election between two candidates , a candidate who gets 40% of total votes is defeated by 15000 votes. The number of votes polled by the winning candidate is ? WITH EXPLANATION

Reply Like? Yes (149) | No (35)

abhishek narayan 11 years ago

let the no. of votes polled= x.
given, 3x/5-2x/5=15000.
x=75000.
no. of votes polled for winning candidate is = 3x/5 =45000

Like? Yes (51) | No (22)

Deepak prajapati 11 years ago

let total no of vote=x
according to the question candidate who got 40% vote,defeated by 15000 votes
that means(no of votes of winner-no of votes for losser=15000)
((60*x)/100)-(40*x)/100)=15000
after solving we got x=75000
no of vote polled by winning candidate=((3*75000)/5)=45000

Like? Yes (78) | No (19)

Akash Verma 11 years ago

let total no. of votes be x.
then (x*40/100)+15000=x*60/100
total no votes =x=75000
So votes polled by winning candidate = 3*x/5=3*75000/5=45000 Ans

Like? Yes (31) | No (14)

Nishant Chaudhary 11 years ago

We know in the election only two candidate participates .
A candidate who found 40% vote is defeated by 15000 votes
it show that that that the condidate defeated by 20% vote
20% votes =15000
thus the winning candidate polled 15000×3=45000 votes
Ans-45000 votes

Like? Yes (29) | No (14)

llamar 10 years ago

defeated candidate got 40% votes , winning candidate get 60%
difference b/w them is 20%=15000
so winning candidate get (60%)=3*15000=45000

Like? Yes (62) | No (10)

Vaishali mittal 10 years ago

winning candidate got
45000

Like? Yes (7) | No (12)

selvam 9 years ago

let take two candidate as A and B
if A takes 40% then B takes 60%.difference is 20% which is nothing but 15000 votes.
20%=15000
60%=? (here i have taken 60% because it is asked to find the winning cand votes)
?=(15000*60)/20=45000

Like? Yes (38) | No (4)

Abdul Majid 8 years ago

in an election between two candidates, a candidate who obtained 7650 votes lost by a margin of 10% of total votes . Find the total votes? Please answer this question.

Like? Yes (34) | No (8)

A SIRISHA to RAKESH 11 years ago

Q. if the price of wheat be raised by 30% , find by how much percent a house holder must reduce his consumption so as not number increase his expenditure ? WITH EXPLANATION

Reply Like? Yes (45) | No (16)

abhishek narayan 11 years ago

let x and y be the cost of the wheat and household consumption respectively.
expenditure= x*y.
new cost of wheat= 1.3x. Let new household consumption be a.
in order to not let the expenditure increase, x*y=1.3x*a
a=10y/13.
thus, consumption should decrease by = (3/13)*100%=23.07%

Like? Yes (24) | No (19)

Akash Verma 11 years ago

direct formula= (R/(R+100))*100,
then, (30/130)*100=23.07%

Like? Yes (23) | No (5)

Gaurav Sharan 11 years ago

Let old price be 100
Then new price = 130
Consumption needs to be decreased by 30 which is in percentage (30/130)*100 = 23.07%

Like? Yes (64) | No (9)

llamar 10 years ago

assume
initially wheat 1kg=100/-
price increased by 30% means 1kg=130
how much wheat he is getting for 100 is x=(100*1000)/130=769.23 grams
consumption should decrease by 1000-769.23=230.7=23.07% of kg

Like? Yes (14) | No (6)

balaji singh 6 years ago

(r/r+100)*100
(30/30+100)*100
=23.07

Like? Yes (1) | No (3)

A SIRISHA to RAKESH 11 years ago

Q. If the radius of a circle is decreased by 50%, its area is reduced by ...? WITH EXPLANATION

Reply Like? Yes | No

abhishek narayan 11 years ago

Let the radius be R.
new area = pi*(0.5R)^2
= 0.25*pi*(R^2).
% reduced = {(1-0.25)/1}*100 = 75%

Like? Yes (2) | No

P.ARUNA 10 years ago

for any 2 dimensional geometry figure the change in its area can be found bye (2x+(x)^2/100)
given area decreased ny 50% so (2(-50)+(-50)^2/100)
= -100+25
= -75%
the area reduced by 75%

Like? Yes | No

A SIRISHA to RAKESH 11 years ago

Q. By mixing water a man gains the profit of ((100/9) %). Find the quantity of water mixed by him.
WITH EXPLANATION

Reply Like? Yes (16) | No

Gaurav Sharan 11 years ago

Let cp of milk =c and of water is 0.
sp of mixed milk = c
cp of mixed milk = 0.9c
let qty of water and milk be n1 and n2 respectively.
By rule of allegation,
n1/n2=(c-0.9c)/(0.9c-0)
i.e. n1/n2= 1/9
So, ratio of milk to water is 9:1

Like? Yes (1) | No (5)

yash 10 years ago

Assume the quantity of milk is n1 @ rate of Rs x /unit
and quanity of water is n2
before mixing water the cost price of milk is n1 *x
after mixing water the cost price will be (n1+n2) *x
the profit will be
(n1+n2)*x- n1*x which will be equal to (100/9)%* n1 *x
so n2*X= (1100/9)*1/100*(n1*x)
n2*x=(1/9) n1*x
n2/n1=1/9
so the ratio of water and millk is 1 ratio 9

Like? Yes (6) | No (2)

A SIRISHA to RAKESH 11 years ago

Q.I mixed some water in pure milk and the mixture is sold at the cost price of the milk. If I gained 16 ⅔% ,in what ratio did I mix water in the milk ? WITH EXPLANATION

Reply Like? Yes (68) | No (17)

A SIRISHA to RAKESH 11 years ago

Q . In a certain camp , 20% of the boys are from Maharashtra state and30% of those are from Bombay city. If there are 49 boys in the camp who are from Maharashtra state but not from Bombay city, what is the total number of boys in the camp ? WITH EXPLANATION

Reply Like? Yes (10) | No (2)

abhishek narayan 11 years ago

Let the no. of total boys in the camp be x.
Given, x/5 are from maharashtra.
and 0.3*x/5 are from Bombay city.
Also, x/5-{(0.3x)/5}= 49
7x=49*50
x=350. ans

Like? Yes (14) | No (4)

Gaurav Sharan 11 years ago

Let total boys be x.
Boys from Maharashta : 0.2x
Boys from Maharashtra but not Bombay : (0.7)0.2x = 49
so, x = 350

Like? Yes (5) | No (2)

A SIRISHA to RAKESH 11 years ago

Q. A rise of 600m is required to get a rail road over a mountain the grade can be kept down by lengthening the track and curving it around the mountain peak. The additional length of the track required to reduce the grade from 2% to 3% is approx ? WITH EXPLANATION

Reply Like? Yes (28) | No (3)

sundar 10 years ago

600/3%-600/2%= 10000

Like? Yes (2) | No (6)

ravi teja ravi teja 9 years ago

why should we take 600/3% ?

Like? Yes (1) | No (4)

BHUVNESH SINGH 7 years ago

The grade is actually the slope of the railroad line. So the given slopes are 0.03 and 0.02. Calculate the length required for each slope and subtract the answers to get your final answer which is the additional length of track required. Slope is the change is height over change in length.

1) For a slope of 0.03 and height of 600 m (which is same for both cases), the length required is 30000 m
2) For a slope of 0.02 and height of 600 m, the length required is 20000 m

So 30000-20000= 10000 m, which is your final answer. The answer to the question is "a" 10000 m

Like? Yes (11) | No (2)

A SIRISHA to RAKESH 11 years ago

Q An insurance collector receives 15% commissions on the premium collected .How much must he collect per week in order that his annual income may be rs.6500/- ? WITH EXPLANATION

Reply Like? Yes (2) | No

Deepak prajapati 11 years ago

suppose,
insurance collector collects x premium per day
so
commission per day will be=(x*15)/100=(3*x)/20
according to question
((3*x*365)/20)=6500
so,x=118.72 per day
for a week =7*118.72=831.04 per week
total income for a week will be 831.04

Like? Yes (3) | No (6)

Uttam guha 6 years ago

((6500/52)*100)/15=833.33...

Like? Yes (7) | No (1)

A SIRISHA to RAKESH 11 years ago

Q. a man taxed at a rate of 5 % as income tax and 10% special surcharge on the amount of income tax pays altogether Rs. 1110 . Find his gross income if he allowed a deduction of 20% . WITH EXPLANATION

Reply Like? Yes (252) | No (25)

chandra 6 years ago

a man taxed at a rate of 5% as income tax and 10% special surcharge on amount of income tax pays altogether 1110. Find his gross income if he is allowed for deduction of 20%.

Like? Yes (17) | No (8)

A SIRISHA to RAKESH 11 years ago

Q A garden has only red, green and white flowers. 60% of flowers have red colours, 30% have green colour and 50% have white colour. If no flower has all the three colours, What percentage of the flowers have only one colour ? WITH EXPLANATION

Reply Like? Yes (5) | No

abhishek narayan 11 years ago

let n(X) be the total no. of flowers in the garden = x.
n(X)= n(RUGUW)= n(R)+n(G)+n(W)-n(two color flowers) + n(three color flower)
x= 0.6x+0.3x+0.5x-n(two color flowers)+ 0
n(two color flowers)=0.4x
n(only R)+n(only G)+n(only W)= n(R) + n(G) +n(W) - 2(two color flowers) )+ 3(three color flowers).
= 0.6x + 0.3x + 0.5x -2(0.4x) + 3*0
=1.4x- 0.8x = 0.6x.
Hence, %(only one color flowers)= 60%

Like? Yes (5) | No (5)

Deepak prajapati 11 years ago

suppose total flowers in the garden=x
given that
n(r)=.6*x
n(g)=.3*x
n(w)=.5*x
n(r g w)=0 (no of flowers has all the three colors)/here space between consecutive no represents intersection
we know that
n(ruguw)=n(r)+n(g)+n(w)-n(r g)-n(g w)-n(r w)+n(r g w)
so,x=(.6+.3+.5)*x-[n(r g)-n(g w)-n(r w)]+0
so,
x[n(r g)-n(g w)-n(r w)]=1.4*x-x=.4*x
now
//formula (only A)=[n(A)-N(A B)-N(B C)+N(A B C)]

[(only r)+(only g)+(only w)]=[n(r)+n(g)+n(w)]-2*x[n(r g)-n(g w)-n(r w)]+3*n(r g w)
=(1.4*x)-2*(.4*x)+(3*0)
so,
[(only r)+(only g)+(only w)] =.6*x
% of [(only r)+(only g)+(only w)]=((.6*x)/x)*100=60% ans.

Like? Yes (5) | No

A SIRISHA to RAKESH 11 years ago

Q. An alloy contains tin and copper in the ratio 4:5. If tin has 20% impurity and copper has 58%, what is the average percent impurity ? WITH EXPLANATION

Reply Like? Yes (13) | No (1)

RAKESH 11 years ago

tin = 4/9 , copper = 5/9
impurity in, tin =4/9 *20% = 8/90 , copper = 5/9 *58% = 29/90
total impurity = (8/90 +29/90) = 37/90

% impurity = 37/90 *100 = 41 % approax

Like? Yes (14) | No (5)

Harsha Vardhan 8 years ago

rakesh how did u take tin as 4/9 and cu 5/9 ?? is it 4+5=9 or any other explanation

Like? Yes (6) | No

Saloni 6 years ago

Let the quantity of tin and copper in the alloy be 4x and 5x, respectively.
Then impurity of tin
= 0.2 × 4x = 0.8x.
and that of copper
= 0.58 × 5x= 2.9x
Total impurity=0.8x + 2.9x = 3.7x

Average impurity percentage
= 3.7x/9x × 100% = 41.1%

Like? Yes (2) | No (1)

A SIRISHA 11 years ago

Q. An alloy contains tin and copper in the ratio 4:5. If tin has 20% impurity and copper has 58%, what is the average percent impurity ? WITH EXPLANATION

Reply Like? Yes | No

abhishek narayan 11 years ago

Let the quantity of alloy be x.
tin impurity = (0.2*4x)/9 and copper impurity=(0.58*5x)/9.
Total % impurity= {(0.8+2.9)/9}*100%=(3.7*100)/9%=41.11%

Like? Yes | No

A SIRISHA 11 years ago

Reply Like? Yes (1) | No (1)

A SIRISHA 11 years ago

Reply Like? Yes | No (1)

A SIRISHA 11 years ago

Q An insurance collector receives 15% commissions on the premium collected .How much must he collect per week in order that his annual income may be rs.6500/- ? WITH EXPLANATION

Reply Like? Yes | No

A SIRISHA 11 years ago

Reply Like? Yes (1) | No

A SIRISHA 11 years ago

Reply Like? Yes | No

tejasvi gamini 10 years ago

Boys from maharasthra=20% of B
Boys from Bombay =30% of B
Boys but not frm Bombay =70% of B
Boys frm Maharashtra but not from Bombay =49
=>20B/100*70B/100=49
Total boys B=4900/14=350

Like? Yes | No

A SIRISHA 11 years ago

Q.I mixed some water in pure milk and the mixture is sold at the cost price of the milk. If I gained 16 ⅔% ,in what ratio did I mix water in the milk ? WITH EXPLANATION

Reply Like? Yes | No

A SIRISHA 11 years ago

Q. By mixing water a man gains the profit of ((100/9) %). Find the quantity of water mixed by him.
WITH EXPLANATION

Reply Like? Yes (1) | No (1)

A SIRISHA 11 years ago

Q. If the radius of a circle is decreased by 50%, its area is reduced by ...? WITH EXPLANATION

Reply Like? Yes (2) | No (1)

A SIRISHA 11 years ago

Q. if the price of wheat be raised by 30% , find by how much percent a house holder must reduce his consumption so as not number increase his expenditure ? WITH EXPLANATION

Reply Like? Yes (2) | No (1)

A SIRISHA 11 years ago

Q. In an election between two candidates , a candidate who gets 40% of total votes is defeated by 15000 votes. The number of votes polled by the winning candidate is ? WITH EXPLANATION

Reply Like? Yes (2) | No (2)

Pages - 119

First prev 44 45 46 47 48 49 50 51 52 53 Next Last

Comment Per Page 50 100

Dimple

India

Punjab

Time: 00:01:33

Points

Maths Quotes

You may be an engineer if your idea of good interpersonal communication means getting the decimal point in the right place.

Unknown

If human invention is the tree bearing juicy fruits, Maths is the root of this tree!

srishti dhameja

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 5 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago