Users Discussion Board

P.Pandeeswari 10 years ago

999,777,666,444,…………..
a) 222
b) 3333
c) 333
d) 111

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

Azhar Syed 10 years ago

According to me answer is C) 333

Like? Yes (1) | No (2)

Rahul Rathod 10 years ago

999-777=222
777-666=111
666-444=222
similarly
444-333=111

Like? Yes (7) | No

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Rajat Rokade to Shreya Tiwari 10 years ago

Well done for the last week....! (y)

Reply Like? Yes (2) | No

anusha 10 years ago

Padam purchased 30 kg of rice at the rate of 17.50 per kg and another 30 kg rice at a certain rate. He mixed the two and sold the entire quantity at the rate of Rs. 18.60 per kg and made 20% overall profit. At what price per kg did he purchase the lot

Reply Like? Yes (22) | No (3)

Shravya 10 years ago

13.5

17.5 x

120x/100=18.6 => x=18.6*100/120=15.5

now,by alligations principle,

17.50 x
15.5
(x-15.5)/(15.5-17.5)=1(since30/30)
solving x=13.5 per kg

Like? Yes (16) | No (12)

harit 10 years ago

anyone who got the mail from infi test held on 22 Nov in bangalore ??

Reply Like? Yes | No

Sucharita Sahu 10 years ago

no mail till now...

let me know if anyone got the mail... Please post it here

Like? Yes | No

sandeep gowd 10 years ago

In an examination 80 % students passed in Mathematics and 75 % passed in English, while 15 % of the students failed in both the subjects. Of 340 students passed, find the total number of students who appeared in the examination

Reply Like? Yes (2) | No

RAMAKRISHNAREDDY to mousumi mohapatra 10 years ago

Four different electronic devices make a beep after every 30 minutes, 1 hour, 3/2 hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at:
Op 1: 12 midnight
Op 2: 3 a.m.
Op 3: 6 a.m.
Op 4: 9 a.m
Read more at http://www.m4maths.com/placement-puzzles.php?SOURCE=amcat&TOPIC=Numerical%20Ability&SUB_TOPIC=LCM%20and%20HCF#CVQschSBw0vG6qUQ.99

Reply Like? Yes (17) | No (6)

shyam narayan 8 years ago

Interval after which the devices will beep together = (L.C.M. of 30, 60, 90, 105) min.
= 1260 min. = 21 hrs.
So, the devices will again beep together 21 hrs. after 12 noon i.e., at 9 a.m.

Like? Yes (15) | No (2)

Nitish saxena 10 years ago

because of tsunami a electric pole fell down to a vertical wall 8m above ground and than slowly it went down completely on tha ground by sliding the bottom of pole by 4m.what is the height of pole?

Reply Like? Yes | No

Puja 10 years ago

I got 72.6 in English, 71.4 in qunt , 74.1 in comp programmng, 57.8 in logical , 58.6 in comp science. Is there any good company call me.

Reply Like? Yes | No

anusha 10 years ago

The number of ways in which 8 different flowers can be strung to form a garland so that 4 particular flowers are never separated is

Reply Like? Yes (18) | No (4)

Anand Dwivedi 10 years ago

Simply :- (5-1)! * 4!/2

So Total value will be 288

Like? Yes (13) | No (18)

R.Ashok Kumar 9 years ago

4 flowers which are always together can be considered as one SET,

Therefore we have to arrange one SET ( 4 flowers ) and 4 other flowers into a garland.

Which means, 5 things to be arranged in a garland.

(5-1)!

And the SET of flowers can arrange themselves within each other in 4! ways.

Therefore

(5-1)!*(4!)

But, Garland, looked from front or behind does not matter. Therefore the clockwise and anti clockwise observation does not make difference.

Therefore

(5-1)! * (4!)/ 2

= 288.

Like? Yes (15) | No (14)

SAURABH TIWARI 9 years ago

Total =8,,, 4 particular means,,now flowers are=4+”1”=5, ans= 5!*4!=120*24=2880

Like? Yes (22) | No (10)

Anshu sharma 10 years ago

is questions from m4 Maths comes in Amcat exam?

Reply Like? Yes | No

Raj 10 years ago

jst for brain sharp n updating ur calculation mind

Like? Yes | No

abhijeet kumar 10 years ago

if you want pdf then i will send you...........

Like? Yes | No

Raj 10 years ago

Q: a person loses 12 1/2% of his money n after spending 70% of the remainder. he is left with rs. 210. how much did he have at the begining i need complete solution dear...

Reply Like? Yes (6) | No

Ashraf Siddiqui 9 years ago

let he had Rs x in begining
since he loses 12 1/25 so he will be left with X-12 1/2 % 0f x
=>x-x/8=7x/8
now spending 70% of it mean....7x/8-70%of 7x/8
=>21x/80
acc to ques w get
21x/80=210
x=800
hence he had Rs 800 in begining

Like? Yes (6) | No (1)

Raj 10 years ago

Q: two nos r respectively 20% & 25% of a third no. what per cent is the first of the second. i need complete solution dear...

Reply Like? Yes | No

A SIRISHA 10 years ago

ANSWER IS.......... 80 %

Like? Yes | No

sandeep gowd 10 years ago

main()
{
printf( 4 + "goodbye");
}

Reply Like? Yes | No

Ramakrishna to A SIRISHA 10 years ago

Q: The number of students in each section of a school is 24. After admitting new students three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. The number of new students admitted is? I NEED COMPLETE SOLUTION PLS HELP ME

Reply Like? Yes (26) | No (7)

Nithiya 10 years ago

before joining the new stds, total no of section would be 13
total no.of stds is 13*21=312
after admitting few std,total no of section is 16
now the total would be 16*21=436
so,no of new comers is 436-312=124

Like? Yes (6) | No (13)

A SIRISHA 10 years ago

number of new students admitted is = 24

Like? Yes (4) | No (7)

Anish. 10 years ago

Per section before joining= 24
No. Of sections before joining = 13
Then total no. Of students before joining = 24*13=312
No. Of sections added after joining = 13+3=16
No. Of students per section after joining = 21
Then total no. Of students after joining= 16 * 21=336
So, total no. Of students joined = 336-312=24

Like? Yes (7) | No

sandeep gowd 10 years ago

main()
{
int i=5;
printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
}
What will be the output?

Reply Like? Yes (9) | No

ASTHA 10 years ago

output : 4 5 5 4 5

Like? Yes (1) | No

Santosh Kumar Behera 10 years ago

Ans: 4 5 5 4 5 3164
here we have 6 "%d" but we want here values of 5 variables...
so we will get any garbage for last "%d"

Like? Yes (1) | No (1)

sandeep gowd 10 years ago

main()
{
int i=5;
printf("%d%d%d%d%d%d",i++,i--,++i,--i,i);
}
What will be the output?

Reply Like? Yes | No

Nithiya 10 years ago

output:5 6 6 5 5

Like? Yes | No

santhoshbabu 10 years ago

Main()
{
Int a=5,b=++a*a++;
Printf("%d",b);
retrun 0;
}
wat output

Reply Like? Yes | No

Deepak prajapati 10 years ago

here ++a=6 and a++=5 so ans will be 30

Like? Yes | No

rajesh reddy 10 years ago

Q)Pipe A takes 16 min to fill a tank. Pipes B and C, whose cross-sectional circumferences are in the ratio 2:3, fill
another tank twice as big as the first. If A has a cross-sectional circumference that is one-third of C, how long will
it take for B and C to fill the second tank? (Assume the rate at which water flows through a unit cross-sectional
area is same for all the three pipes.)(AMCAT)
o 66/13
o 40/13
o 16/13
o 32/13

Reply Like? Yes | No

A SIRISHA 10 years ago

A MAN HAS 40 KG OF TEA , A PART OF WHICH HE SELLS AT 5 % LOSS AND THE REST AT THE COST PRICE . IN THIS BUSINESS HE GETS A LOSS OF 3 % . FIND THE QUANTITY WHICH HE SELL AT THE COST PRICE ?

Reply Like? Yes (13) | No

Bala 10 years ago

16 kg is ans
5% of x =3% of 40
5% of x = 1.2
x= 1.2 * 100/5
x = 24
ans. = 40-24=16

Like? Yes (5) | No (1)

Abhishek Agarwal 10 years ago

This question can be solved with the help of alligation.
Some part is sold at a loss of 5% hence it is written as -5%.
In other their is neither loss nor profit hence other is 0.
Now he has an overall loss of 3% hence resultant is -3%.
-5 0
/
-3
/
(0 - (-3)) (-3 - (-5))

So ratio of selling is 3:2.
Part he sold at cost price is 2_ * 40 = 16 KG
5

Like? Yes (5) | No

Rajitha 10 years ago

Let CP be costing price and x be the quantity sells at CP
given loss=3%
ie 3/100=(40*CP-(x*CP+(40-x)0.95*CP))/40*CP
x=16

Like? Yes (2) | No

A SIRISHA 10 years ago

THE COST OF HORSE AND A COW IS IN THE RATIO 3:5 . A TRADER GAINS 15 % ON THE HORSES AND LOSSES 10 % ON THE COW BY SELLING THEM. HIS OVERALL GAIN OR LOSS IS ?

Reply Like? Yes (9) | No

A SIRISHA 10 years ago

BY USING FALSE WEIGHT A TRADER GAINS 100/19 % BY CLAIMING TO SELL AT COST PRICE . WHAT WEIGHT DID HE ACTUALLY USE FOR A KG WEIGHT ?

Reply Like? Yes (13) | No

A SIRISHA 10 years ago

A GRAIN DEALER CHEATS TO THE EXTENT OF 10 % WHILE BUYING AS WELL AS SELLING , BY USING FALSE WEIGHTS . HIS TOTAL GAIN % IS ?

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

A SIRISHA 10 years ago

A SINGLE DISCOUNT EQUIVALENT TO A DISCOUNT SERIES OF 30 %, 20 %, AND 10 % IS ?

Reply Like? Yes (74) | No (19)

Kranthi Kumar Kota 10 years ago

Let it be some 100 Units..
10/100 ( 20/100 ( 30/100 (100) ) )=6/10= 40%

Like? Yes (4) | No (10)

Bala 10 years ago

30% on 100 gives 70
20% on 70 gives 56
10% on 56 gives 50.4%

Like? Yes (9) | No (5)

Sourabh Prasad 10 years ago

If 3 succesive discounts a%, b% and c%
then single discount
= a + b + c – (ab/100 + bc/100 + ca/100 – abc/10000)

a= 30
b= 20
c= 10

solving we get, 49.6 %.

Like? Yes (38) | No (8)

Raviprakash 10 years ago

consider 100.......
70%100=30 100-30=70
20%70=14 70-14=56
10%56=5.6
56-5.6=50.4%
50.4%

Like? Yes | No (8)

Rajitha 10 years ago

Let some units be 100
30% on 100 gives 70
20% 0n 70 gives 56
10% on 56 gives 50.4
So, single discount is 50.4%

Like? Yes (1) | No (5)

A SIRISHA 10 years ago

IF AN ARTICLE IS SOLD AT 5 % GAIN INSTEAD OF 5 % LOSS , THE SELLER GETS RS.6.72 MORE . THE COST PRICE OF THE ARTICLE IS ?

Reply Like? Yes (14) | No (1)

Bala 10 years ago

6.72/2= 3.36
5% of x = 3.36
x = 67.2

Like? Yes (3) | No (1)

Rajitha 10 years ago

Let CP be costing price
gain=6.72
1.05CP-Cp=6.72
CP=134.4

Like? Yes (5) | No (5)

A SIRISHA 10 years ago

A SELLER MARKS HIS GOODS AT 25 % ABOVE THEIR C.P AND ALLOWS A DISCOUNT OF 10 % . HIS PROFIT PERCENT IS ?

Reply Like? Yes | No

Shobhit Saxena to shree 10 years ago

.....................................................................................................Kaisa h bhai?

Reply Like? Yes | No

swastin Sahoo 9 years ago

4778/77798789+48/2*2^200=??

Like? Yes | No

A SIRISHA 10 years ago

AN ARTICLE IS SOLD AT A CERTAIN PRICE .BY SELLING IT AT 2/3 OF THAT PRICE ONE LOSSES 10 %. THE GAIN PERCENT AT ORIGINAL PRICE IS ?

Reply Like? Yes (16) | No (3)

Santosh Kumar Behera 10 years ago

Let the original selling price be : x and the new selling price is : (2/3) of x = 2x/3
we know CP=(100/(100-Loss))*SP
Where SP is Selling Price. here, Loss = 10% and SP = 2x/3
Now CP=(100/90)*(2X/3)=20X/27 This is the Cost Price for that article.
Selling Price is : x
Gain = Cost Price - Selling Price
=X-20X/27=7X/27
Now Gain%= (7x/27)/(20x/27)= 35%

Like? Yes (65) | No (22)

Deepak prajapati 10 years ago

let cp=x and sp=y
(2y/3)+x/10=x
y=(27/20)x
now gain %=((y-x)/x)*100
putting the value of y
we will get gain % =35

Like? Yes (31) | No (14)

Tapan kumar dalei 5 years ago

10% loss means the cost price is 10 and sp is 9
But 9 is equals to 2/3
Hence the original selling price be 9×3/2 =13.5
Now the cp is 10 and sp is 13.5
Hence profit is 3.5
Profit percentage is 3.5/10×100= 35%

Like? Yes (90) | No (9)

A SIRISHA 10 years ago

AN ARTICLE WHEN SOLD AT A GAIN OF 5 % YIELDS RS.15,MORE THAN WHEN SOLD AT A LOSS OF 5 %. WHAT IS THE COST PRICE ?

Reply Like? Yes (27) | No (9)

Santosh Kumar Behera 10 years ago

Let the cost price is x
5% gain = (100+5)/100
5% loss = = (100-5)/100
(105/100)x - (95/100) x = 15
=>X=150

Like? Yes (46) | No (8)

Bala 10 years ago

5% gain + 5% loss = 10% = 15
10% of x = 15
x = 150

Like? Yes (19) | No (10)

Rajitha 10 years ago

Let costprice be x
5% gain means selling price=1.05x
5%loss means Selling price is 0.95x
1.05x-0.95x=15
x=150

Like? Yes (13) | No (1)

A SIRISHA 10 years ago

A REDUCTION OF 25 % IN THE PRICE OF EGGS WILL ENABLE ONE TO BUY 4 DOZEN MORE EGGS FOR RS. 96.WHAT IS THE PRICE PER DOZEN ?

Reply Like? Yes (31) | No (5)

rajesh reddy 10 years ago

ans. 8rs
let the price be X
after 25% reduction,price = (X- X/4) = 3X/4=96
=> X=128
one can buy four more dozens with that 25% reduced amount which is 128 - 96 =32

4 dozens in 32 rs ==> 8Rs per dozen

Like? Yes (35) | No (26)

Rajitha 10 years ago

Let x be the price of 1 dozen eggs and y be the no of dozens
initially, xy=96
after 25% reduction, price=3/4x
96=(3/4x)(y+4)
y=12
x=96/y
x=8rs

Like? Yes (22) | No (18)

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)

A SIRISHA 10 years ago

A MAN BUYS EGGS AT 2 FOR RS.1 AND AN EQUAL NUMBER AT 3 FOR RS.2 AND SELLS THE WHOLE AT 5 FOR RS.3 . HIS GAIN OR LOSS PERCENT IS?

Reply Like? Yes (2) | No

A SIRISHA 10 years ago

A DEALER PROFESSING TO SELL HIS GOODS AT C.P ., USES A 900 GM WEIGHT FOR A KG . HIS GAIN PERCENT IS ?

Reply Like? Yes (2) | No

SUBHASH TULSYAN 10 years ago

10 % is the answer

Like? Yes (3) | No

mousumi mohapatra 10 years ago

the answer to your question is 100/9%
there is a formula to it:
x-y/y*100%
where y is the apparent weight used by dealer
and x is the weight that dealer did not use

Like? Yes (2) | No (1)

A SIRISHA 10 years ago

BY SELLING AN ARTICLE FOR RS. 19.50 , A DEALER MAKES A PROFIT OF 30% .BY HOW MUCH SHOULD HE INCREASE HIS S.P , SO AS TO MAKE A PROFIT OF 40%?

Reply Like? Yes (15) | No

SUBHASH TULSYAN 10 years ago

21 is the answer

Like? Yes | No

A SIRISHA 10 years ago

IF A COMMISSION OF 20% IS GIVEN ON RETAIL PRICE ,THE PROFIT IS 60%. FIND THE PROFIT % WHEN THE COMMISSION IS INCREASED BY 5 % OF THE RETAIL PRICE ?

Reply Like? Yes (13) | No

Devendra Marghade 10 years ago

50%

If CP=x & Retail price or SP=y
When commission of 20% is given, then SP=y- 0.2y=0.8y, As profit in this case=60%= 1.6x
So when, commission is increased by 5% i.e. 25%, then SP=y-0.25y=0.75y,
So profit= 0.75y*1.6x/0.8y=1.5x =50%

Like? Yes (5) | No (10)

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 (31) | 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 9 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)

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The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?

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