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Dimple

India

Punjab

Time: 00:01:33

Points

Maths Quotes

A man has one hundred dollars and you leave him with two dollars. That's subtraction.

Mae West

If u consizder ur self as zero. ...... Don't worry u r d whole mathematics. ..

pkg

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 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

Public Wall |

(9 years ago) "Other"

While selling a watch, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original price of the watch?

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(9 years ago)

orginal price of watch is 1020

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(9 years ago)

1020

If marked price or original price=x, then [x*(100-15)/100] - [x*(100-20)/100]= 51 or
0.85x- 0.8x=51 , 0.05x=51, x=1020

Like? Yes | No

to (9 years ago) "Other"

how many no can be formed using digits (1,2,3,4,5,6,7,8,9)..such that they are in increasing order(eg:0 12345,345,6789,123456789)???

Reply Like? Yes | No

(9 years ago)

0,1,12,123,1234,12345,123456,1234567,12345678,123456789,23,234,2345,23456,234567,2345678,23456789,34,345,3456,34567,345678,3456789,45,456,4567.45678,456789,56,567,5678,56789,67,678,6789,78,789,89,2,3,4,5,6,7,8,9.......................... 46no

Like? Yes (1) | No

(9 years ago)

single digits cant be cosidered in inc order
1+2+3+.........+8 = 36

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to (9 years ago) "Other"

A deck of 5 cards (each carrying a distinct number from 1 to 5) is shuffled thoroughly. Two cards are then removed one at time from the deck. What is the probability that the two cards are selected with the number on the first card being one higher than the number on the second card?

Reply Like? Yes | No

(9 years ago)

n(s) =5*4
n(e)= {(2,1),(3,2),(4,3),(5,4)} = 4
p = 1/5

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to (9 years ago) "Other"

You have 3bags each containing two marbles.bag A contain 2 white marbles , bag B contaion 2 black marbles,bag C contains one white marble and one block marble. You pick a random bag and take out one marble.it is a white marble.probability that the remaining marble from the same bag is also white ?

Reply Like? Yes | No

(9 years ago)

bag can be A or C
1st is white so 2nd can be w/b so p =1/2

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to (9 years ago) "Other"

Abhishek and Aishwarya picked up a ball at random from a bag of M red colour and N yellow coloured balls,one after the another, replacing the ball every time till one of them gets a red ball.The first one to get a red ball is declared as a winner.IF Abhishek wins the game and odds in favour of his winning the game is 3/2 find the ratio of M/N
A)1:1
B)1:2
C)2:3
D)3:2

Reply Like? Yes | No

to (9 years ago) "Other"

1/a - 1/b = 1/c where a,b,c are single digit number and b > a . Then we have to find how many values are possible for a,b,c as per the given conditions..?

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(9 years ago)

if a.b, c are distinct then
a=bc/(b+c)
two soln (2,3,6)&(2,6,3)

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to (9 years ago) "Other"

assertion reasoning question
ques 1 is x integer
1) x/2 is integer
2) 2x is integer

ques 2 there are three consecutive prime number p,q,r, such that q-p=2 what is the value of r
1)their median is the average of 3 prime number .
2) sum is 15

Reply Like? Yes | No

(9 years ago)

1) only 1 is suffice
x must be even integer.
2x=5 then x not integr.

2) either suffice
must be 3,5,7

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to (9 years ago) "Other"

Three numbers A,B,C are such that the difference between the highest and the second highest two-digit numbers formed by using two of A,B and C is 5.Also ,the smallest two two-digit numbers differ by 2.If B>A>C then what is the value of B?

(a)1 (b)6 (c)7 (d)8

Reply Like? Yes | No

(9 years ago)

BA-BC=5 => A-C=5
CB-CA=2 => B-A=2
adding weget, B-C = 7 => B > 7
from options B= 8 is possible.

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to (9 years ago) "Other"

How many 4 digit numbers can be formed using digits 0,1,2,3,4,5, such that number is divisible by 8??

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to (9 years ago) "Other"

There is a circular table. It has 60 chairs. Drakula came and sit on a chair beside another person. What is the minimum no. of person will be so, that wherever he sits he always gets to sit beside a person

Options: 30, 20, 15, 10

Reply Like? Yes | No

(9 years ago)

if thre r 6 chairs then
m _ _ m _ or _m_ _ m _ etc in each case mimn number of men = 6/3 = 2

for 60 chairs 60/3 = 20

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to (9 years ago) "Other"

A lady bought five books namely A,B,C,D,E to distribute her 3 child. How many ways she can distribute books?

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(9 years ago)

60

With A,B combinations C or D or E are possible, with A,C combinations B or D or E are possible, with A,D combinations B or C or E are possible, with A,E combinations B or C or D are possible
So total 12 combinations for A are possible for selecting 3 among 5 like (A,B,C), (A,B,D), (A,B,E), (A,C,B), (A,C,D), (A,C,E), (A,D,B), (A,D,C), (A,D,E), (A,E,B), (A,E,C), (A,E,D)
Similar 12 combinations are possible for remaining 4
So total ways=5*12=60

Like? Yes (2) | No

to (9 years ago) "Other"

P is an even number (I think greater than 2 it was given). e is the probability of number of even numbers divisible by p, o is the probability of number of odd number divisible by p and w is the probability of number of whole numbers divisible by p. Then which equation satisfies.
1. w=2 e
2. w=e/2
3. w=o/2
4. not remember

Reply Like? Yes | No

(9 years ago)

p = ???
odd num cant be divid y even so o =0

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to (9 years ago) "Other"

ABC is a right-angle triangle with sides R1, R2 and R3 such that no sides are even simultaneously. If 102 is added to all sides and then squared we get S1, S2, S3 (Sn=square of (Rn+102)). If T= S1+S2+S3.
Then, which is always true for T.
1. divisible by 2 but not by 4
2. divisible by 4 not by 8
3. divisible by 8 not by 4
4. none of the above

Reply Like? Yes | No

(9 years ago)

as given condn 2 of R1, R2 and R3 will be odd nos
consider tr (3,4,5)
then T = (3+102)^2 + (4+102)^2 + (5+102)^2
= (3^2+4^2+5^2)+ 3*102^2 + 2*102*(3+4+5)
its clear that
T is always divisible by 2 but not by 4

Like? Yes (1) | No

(9 years ago) "Other"

A dividend rs 504 lakhs for shares was announced by a company 100 employee cum shareholders get rs 3.60 lakhs each and the share holder who is not the employee gets rs 2.40 lakhs each how many share holders are there who are not employees

Reply Like? Yes (13) | No

(9 years ago) "Other"

Find the odd man out:
2,8,20,44,83

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(9 years ago)

83 ------------------------------------

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(9 years ago)

2 , 2*2+4 ,8*2+4 , 20*2+4 , 44*2+4=92 so 83 is wrong

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to (9 years ago) "Other"

2 and 2014 r not co prime so ur solution is wrong

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(9 years ago) "Other"

5+3+2 = 151022
9+2+4 = 183652
8+6+3 = 482466
5+4+5 = 202541
THEN; 7+2+5 =?
Multiply the first two digits, Multiply the first and last digit, Add the previous two and subtract it from the middle number..
7 * 2 = 14
7 * 5 = 35
(14+35-2) =47
so the ans is 143547

Reply Like? Yes (1) | No

to (9 years ago) "Other"

hi....gousulu.........

Reply Like? Yes (1) | No

(9 years ago)

hi raa Gangadhar

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(9 years ago) "Other"

Benazir Bhutto Is associated with which of the following parties
(A) Muslim League
(B) Pakistan Peoples Party
(C) Pakistan National Congress(D) Islamic Movement of Pakistan
(E) None of these

Reply Like? Yes (1) | No

(9 years ago)

Benazir Bhutto is associated with Pakistan Peoples Party(PPP)

Like? Yes (1) | No

(9 years ago) "Other"

If the value of m^n is 6561.Find the value of m/n:

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(9 years ago)

3^(16)=6561.therfore m=3,n=16
m/n=3/16

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(9 years ago) "Other"

What is the value of log 34300=?

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(9 years ago) "Other"

There are 14 digits of credit card number to be filled. Each of the below three boxes contains continuous digits of 18 as sum. Given: 4th digit is 2 and 7th digit is x. Then what is the value of x?

Reply Like? Yes | No (2)

(9 years ago) "Other"

A says; horse is not black
B says; horse is either brown or grey
c says;horse is brown;
at least one is telling truth & at least one is lying .
pls explain clearly

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to (9 years ago) "Other"

When a cone cut by a plane at a height of h/5. then what is the ratio of volume cone and frustum ???

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(9 years ago)

u hv not mentioned h/5 is upper or lower height ? vol of original cone or resulting cone

use, r/R = h/H here h can be h/5 or 4h/5 then R = 5r or R = 5r/4
use ,vol of cone = 1/3 *pi*r^2h & vol of frustum = pi*h/3 *(r^2+R^2+rR) then find ratio

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to (9 years ago) "Other"

JaiRam give me the answer for this....
1,2,4,9,28,.......what next..?

Reply Like? Yes | No

(9 years ago)

65 will come in next position
here 1=0^3+1;
1^3+1=2;
2^3+1=9;
3^3+1=28;
4^3+1=65

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(9 years ago)

what about 4 yaar?

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(9 years ago)

Hai jaya u missed 4,lets check and find correct answer...

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(9 years ago)

OK,Answer is 125,can u try how it comes...!?

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(9 years ago) "Other"

Ratio of the radii of the cylinder to the cone is 1:2. Assume, their heights are the same. Find the ratio of their volumes.

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(9 years ago)

ANS=3:4
4(pi)r*rh/((pi*r*r*h)/3)=3:4
since let radiii ratio=X:2X

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to (9 years ago) "Other"

X pow 100 = 31 digit then find x pow 1000= how many digits??

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(9 years ago)

100logx +1 = 31 => x=2

2^1000 wll give (1000log2 +1) = 302 digits

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(9 years ago) "Other"

I want infosys aptitude question and answers with explanation

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(9 years ago)

http://www.m4maths.com/placement-puzzles.php?SOURCE=Infosys

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(9 years ago) "Other"

CAN ANYBODY SOLVE THIS PROBLEM!!!!
1111111*1111111==__________________USING MATHS TRICK!!!!!!

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(9 years ago)

1234567654321........for n no.of ones...123....n.n-1.n-2.....1

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to (9 years ago) "Other"

in a zoo, there are 1 billion monkeys. Probability that a monkey has seen a banyan tree is 0.6. Prob. that monkey has seen a mango tree is 0.65. what is the minimum percentage of monkeys in the zoo who have seen both the trees?
OPTIONS- 25%,39%,40%,60%
plz solve this for me asap. m confused it will be 25% or 39%

Reply Like? Yes (1) | No

(9 years ago)

Ans. is 25% definitely because when we add 125billion monkeys will come
Total =1.25billion-1billion =0.25billion
Which is 25% 0f 1billion

Like? Yes (3) | No

(9 years ago)

For example, u have 4 red pens, 4 blue pens and 2 mixed (red+blue) pens.
So, total pens =10
actually u have 6 blue pens and 6 red pens (including mixed pens)=12 pens.
So, mixed pens=12-10=2mixed pens.

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(9 years ago)

(0.65+0.6)-1=0.25,that is 25%..

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(9 years ago) "Other"

find last 2 digit of 1287^128 ?

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(9 years ago)

the ans is 21.............
using python program...
x=input("enter A range")
y=1287**128
print y%10
y=y/10
print y%10

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(9 years ago) "Other"

of the 3 numbers ,the first is 60% more than the second and 20% less than the third.by how much percentage is the third more than the second

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(9 years ago) "Other"

what is the answer of the series (1 + 2)(1 + 2^2)(1 + 2^4)(1 + 2^8)(1 + 2^16)(1 + 2^32)(1 + 2^64)(1 + 2^128) = ?

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(9 years ago)

1.461501637*10^48

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to (9 years ago) "Other"

If the letters of the word CHASM are rearranged to form 5 letter words such that none of the word repeat and the results arranged in ascending order as in a dictionary what is the rank of the word CHASM

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(9 years ago) "Other"

In a triangle ABC, points P1, Q1, R1 divide the lines AB, BC and AC respectively in the ratio 3 : 2 each. In the triangle P1 Q1 R1, the points P2, Q2 and R2 divide the sides P1Q1, Q1R1 and P1R1 in the ratio 3 : 2 each. A new triangle is constructed by joining the points on the sides of triangle P2Q2R2 that divide these sides in the ratio 3 : 2. This process of forming triangles continues infinitely. Find the ratio of the area of triangle P1Q1R1 to the sum of the areas of all the formed/constructed triangles (P2Q2R2, P3Q3R3…) whose areas are smaller than the area of the triangle P1Q1R1.

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(9 years ago) "Other"

find the number of zeros in 1^1*2^2*3^3*........25^25?
a) 250
b)225
c)545
d)100

Reply Like? Yes (2) | No

(9 years ago)

100 times
count all the number of 5 in that question
as 5^5=no. of 5 will be 5
10^10=(2*5)^10=no. of 5 will be 10
15^15=(3*5)^15= no. of 5 will be 15
20^20=(2*2*5)^20= 20 times five
in 25^25=No. of 5 will be 50 times
so total 100

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(9 years ago) "Other"

HAI GOOD AFTERNOON!

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to (9 years ago) "Other"

HAI HELLO OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

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to (9 years ago) "Other"

gd mng frndsssssssssssssssssssssssss

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to (9 years ago) "Other"

orey thaiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

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(9 years ago)

nuvvu neeeeeeeeee

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(9 years ago)

hi.srinu...........

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(9 years ago)

hai raaa mess baaaga tinu

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to (9 years ago) "Other"

hai gd mng how ar uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

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(9 years ago) "Other"

two vehicles A and B leaves from city Y to city A overtakes B at 10.30am and reaches city X at 12.00pm.It waits for 2hrs and returns to city Y.on its way it meets B at 3.00pm and reaches city Y at 5.00pm .B reaches city x waits for 1 hr and returns to city Y after how many hour will B reach city Y from the time A overtook him for the first time?
can anyone answer plz

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to (9 years ago) "Other"

HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

Reply Like? Yes (2) | No

(9 years ago)

poraaaaaaaaa pouleeeeeeeeee

Like? Yes (1) | No

(9 years ago)

GOOD MORNING TO ALL

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(9 years ago)

hi ra jaffa manklakljl;sdlksjldkjx,dasd

Like? Yes (1) | No

(9 years ago)

hiiiiiiiiiiiiiiiiiiiiiiiiiiii

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to (9 years ago) "Other"

haiiiiiiiiiiii raaaaaaaa

Reply Like? Yes (1) | No

(9 years ago)

hi...........................................

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(9 years ago) "Other"

A salesperson earns a salary of $19,000 per year. She also makes a commission of 30% on her sales. If her sales for the year total $31,000 how much money was she paid for the year?

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(9 years ago)

Money she was paid = 19000 + (30% of 31000) = $ 28300

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(9 years ago) "Other"

16. There are 9 cards. Arrange them in a 3*3 matrix. Cards are of 4 colors. They
are red, yellow, blue, green. Conditions for arrangement: one red card must be
in first row or second row. 2 green cards should be in 3rd column. Yellow
cards must be in the 3 corners only. Two blue cards must be in the 2nd row.
At least one green card in each row.

Reply Like? Yes | No

(9 years ago)

Arrangement is
1st row - Y R G
2nd row - B B G
3rd row - Y G Y

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(9 years ago) "Other"

Apples cost L rs. Per kilograms for the first 30 kg and Q rs. Per kilograms for each additional kilogram If the price paid for 33 kg of apple is rs.1167 and for 36 kg of apple is rs.1284 then the cost of first 10kgs of apple is:

Reply Like? Yes | No

(9 years ago)

30L + 3Q = 1167
30L + 6Q = 1284
solving above two equations we get
3Q = 117 , Q=39 so L=35
thus cost of first 10 kg apples is 350.

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(9 years ago) "Other"

In school there are some bicycles and 4 wheeler wagones.one tuesday there are 58 whells in the campus.how many bicyles are there?

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(9 years ago) "Other"

there are 12 black balls in a bag

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to (9 years ago) "Other"

Find the least number of candidates in an examination so that the percentage of successful candidates
should be 76.8%:

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to (9 years ago) "Other"

Find the least number of candidates in an examination so that the percentage of successful candidates
should be 76.8%:

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to (9 years ago) "Other"

Hi,please solve this Find the least number of candidates in an examination so that the percentage of successful candidates
should be 76.8%:

Reply Like? Yes (1) | No

(9 years ago) "Other"

A is twice efficient than b.Aand B can both work together to complete a work in 7 days.Then in how many days a alone can take to complete the work???

A)10.5 B)12 C)18 D) 250

Reply Like? Yes | No

(9 years ago)

Let B can finish it off in x days
B can do 1/x work in 1 days
As A is twice efficient then, A can do 2/x work in 1 days
so total work (A+B) in 1 days = 1/x + 2/x =3/x
so total time to finish the work when they work together = x/3 = 7
=> x =21 days
A can finish the work = 1/(2/x) = x/2 =10.5 days

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to (9 years ago) "Other"

hi shikhar when did u started these tests ???
!!

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(9 years ago) "Other"

What is the wrong in this program
main()
{
char *p,*q;
p=(char *)malloc(25);
q=(char*) malloc(25);
strcpy(p,"amazon" );
strcpy(q,"hyd");
strcat(p,q);
printf("%s",p);
}

Reply Like? Yes | No

(9 years ago)

we cannot do strcat on two pointers , we should do strcat(p,"bangalore");

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(9 years ago) "Other"

1,11,21,1211.111221,___?______

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(9 years ago)

ans: 312211
as we speak the digits in reading write as it is

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(9 years ago) "Other"

A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by?

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(9 years ago)

Let number is 10x+y
after reverse of digit, number = 10y+x
sum = 11x + 11y = 11(x + y)
so number will be divisible by 11

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(9 years ago) "Other"

how many 6 digit even number can be formed from the digit 1,2,3,4,5,6 and 7so that the digit should not repeat and the second last digit is even?

Reply Like? Yes | No

(9 years ago)

720

Here 6-digit even number is required with last two digit to be even, which is possible with last two digits as 24, 26, 42, 46, 62, 64
For last digits to be 24, first four digits can be among 1,3,5,6,7, so total 4 digits combinations from 5 digits=5P4=120
Similar 120 combinations for remaining last two digits 26, 42, 46, 62, 64 are possible.
So total 6 digit even numbers without repetition having last two digits even=120*6=720

Like? Yes (1) | No

(9 years ago) "Other"

Q. A very big story.on Tuesday college parking place have only 4wheelers & bicycles,total no of
wheels was 182,yhen what is the possible no of bicycles?

Reply Like? Yes (2) | No

(9 years ago) "Other"

john manson wanted to build a wall.the length and height of a wall are 30m, 20m. if he needs 35 bricks per m2 of wall area.how many bricks are needed to build 4 walls of same specification

A)72000 B)78000 C)84000 D)90000

Reply Like? Yes | No

(9 years ago)

l=30m
h=20m
area=l*h=30*20=600m2
for 1m2=35bricks
600m2=600*35=21000
for 4 walls
4*21000=84000

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(9 years ago)

Area of 1 wall = 30*20=600 m2
Area of four such walls = 600*4 = 2400 m2
1 m2 = 35 bricks
2400 m2 = 2400*35 = 84000 bricks

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(9 years ago) "Other"

3 small pumps and a large pump are filling a tank. Each of the three small pumps works at 2/3rd the rate of the large pump . If all 4 pumps work at the same time, they should fill the tank in what fraction of the time that it would have taken the large pump alone?

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to (9 years ago) "Other"

oye oye oye oye oye oye oye oye oye oye oye oye oye oye oye oye oye oye oye

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(9 years ago) "Other"

There are two trains, running towards each other, a bee keeps on moving to and fro for 5 mins, b/w two trains until they collide, at a speed of 360 km/h. Calculate the distance travelled by the bee.

Reply Like? Yes | No

(9 years ago)

Speeed of Bee is 360 km/h = 100m/s

so total distance = 5*60*100 = 3000 m = 3km

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(9 years ago) "Other"

You have a Scooter whose tyre gets burst at 1000 km. You are also given a stepny (bursts at 1000 km). You have to travel a distance of 1510 km, what distance you have to cover on foot?

Reply Like? Yes (1) | No

(9 years ago) "Other"

From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?

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to (9 years ago) "Other"

hieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :P

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to (9 years ago) "Other"

Lottery balls are numbered and coloured balls. In the famous Lotto, six numbered balls are
drawn at random from 49 balls. In each ticket one needs to guess the six numbers that
would be drawn. If no correct guesses are received the prize money is carried to the next
draw. It is not uncommon to see prize money accumulating to several millions of dollars. An
urn contains m white and n black balls. A ball is drawn at random and is put back into the
urn along with k additional balls of the same colour as that of the ball drawn. A ball is again
drawn at random. The probability of drawing a white ball now:

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(9 years ago) "Other"

In how many ways can the digit of the number 2233558888 be arranged so that the odd digits are placed in the even positions?
please any one send me actual solution with description

Reply Like? Yes (3) | No

to (9 years ago) "Other"

in a college basketball, a player awarded a "one-and-one" gets to shoot one free throw and , if successfull ,shoot a second one.each successfull free throw is worth one point.suppose a player succeeds at free throws 80% of the time.on average , how many points should this player expext to score foe each one-and-one?

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to (9 years ago) "Other"

If LONG+TOO=SHORT then what is the value of S+H+O+R+T ?

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(9 years ago)

plz give me answer for this question

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(9 years ago)

but i dont know sorry

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(9 years ago) "Other"

Ms. Khyati deposits an amount of Rs. 68,400 to obtained a simple interest at the rate of 8. P.c.d.a for 4 years. What total amount will Ms. Khyati get at the end of 6 years ?

Reply Like? Yes (23) | No (4)

(9 years ago) "Other"

Log864-log644096=?

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(9 years ago)

log a-log b=log a/b
log (864/644096)=-2.872

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(9 years ago)

log 64 base8 - log4096 base64 = log 8^8 base 8 -log 64^64 base 64
as we know that log n^m=mlogn so we ge
=8log 8 base 8 - 64log 64 base 64 because log a base a=1
=8*1-64*1=8-64
ANS=56
is it right answer ??

Like? Yes | No (2)

(9 years ago) "Other"

Total number of prime factor (402)^7 is what?

Reply Like? Yes (23) | No

(9 years ago)

ans is 3
(402)^7=(2*3*67)^7
there are only three prime factors i.e. 2 ,3,67.

Like? Yes (5) | No (2)

(9 years ago)

21......i.e 402=2*3*67

Like? Yes (2) | No (3)

(9 years ago) "Other"

Log3 27+log3 12-log3 4=x.the value of x=?

Reply Like? Yes | No

(9 years ago)

Log3 27+log3 12-log3 4=x
or,x=log3 (27*12)/4
or, x=log3 (81)
or, x=log3(3^4)
or , x=4log3(3)
or, x=4*1
or, x=4

Like? Yes | No

(9 years ago) "Other"

1, 2, 9, 24, 120, 36,?

Reply Like? Yes | No

(9 years ago) "Other"

3, 1, 13, 11, 31, 29, _ Next number in series?

Reply Like? Yes | No

(9 years ago)

57

3 - 2= 1 & 1+ 12 =13
13-2=11 & 11+20=31
31-2=29 & 29+28=57

Like? Yes | No

(9 years ago)

Thanks @Devendra

Like? Yes | No

(9 years ago) "Other"

Tcs open seesame 2015 question number 6(ant problem).Please send me how to solve it.

Reply Like? Yes | No

(9 years ago) "Other"

Write a function to print binary equivalent of any number, using recursion? (In C++/Java)

Reply Like? Yes | No

(9 years ago) "Other"

The rupee/coin changing machine at a bank has a flaw. It gives 10 ten rupee notes if you put a 100 rupee note and 10 one rupee coins if you insert a 10 rupee note but gives 10 hundred rupee notes when you put a one rupee coin!
Sivaji, after being ruined by his rivals in business is left with a one rupee coin and discovers the flaw in the machine by accident. By using the machine repeatedly, which of the following amounts is a valid amount that Sivaji can have when he gets tired and stops at some stage (assume that the machine has an infinite supply of notes and coins):

Reply Like? Yes (2) | No

(9 years ago)

check the option divisible by 999

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(9 years ago) "Other"

This is to be paid back in two equal instalments. If the rate if interest be 20% compounded annually, then the value of each instalment is :

Reply Like? Yes | No

(9 years ago) "Other"

The average salary of a group of 75% is Rs.3700/ .If salary of one man is added then average increases to Rs 3750. What is the salary of this one person?

please provide me solution of this question...

Reply Like? Yes (6) | No

(9 years ago)

its 75% or 75 persons?

Like? Yes | No (1)

(9 years ago)

salary of the person is=(76*3750)-(75*3700)=7500

Like? Yes | No (1)

(9 years ago)

its not 75.....it is 75%

Like? Yes (2) | No

(9 years ago)

answer is 5100.... how?

Like? Yes | No

to (9 years ago) "Other"

bro can u please provide me a solution for this problem
There is a 3 digit positive number such that sum of all its digits is equal to 6. How many such number are possible.

Reply Like? Yes | No

(9 years ago)

let x1+x2+x3=6.....the maximum possible digits for x1 is (1-6).......we first check x1=1 :when x1=1...the possible values of x2 and x3 for sum equl to 6: (0,5) ,(1,4),(2,3),(3,2),(4,1),(5,1)...for x1=2 than possible values of x2 and x3: (0,4),(1,3),(2,2),(3,1),(4,0) ....likewise we find out possible values of x2,x3 when x1=3,x1=4,x1=5,x1=6.........the sum of all possible values :6 (for x1=1)+5 (for x1=2) +4 (x1=3) +3+2+1=21 ....so,ans is 21

Like? Yes | No

(9 years ago) "Other"

can any one explain the process for this question which is asked before
"There is a 3 digit positive number such that sum of all its digits is equal to 6. How many such number are possible".

Reply Like? Yes | No

(9 years ago) "Other"

cocubes answer with answer

Reply Like? Yes | No

(9 years ago) "Other"

how to solve quickly these type of promlems.....x=332, y=333, z=335, than x^3+y^3+z^3-3xyz

Reply Like? Yes (1) | No

(9 years ago)

( a + b + c)^3 = 1000^3=10^6

Like? Yes (1) | No

(9 years ago) "Other"

A cricketer whose bowling average is 12.4 runs per wicket,takes 5 wickets for 26 runs and thereby decreases his average by 0.4.The number of wickets taken by him till last match ,...a)64 b)72 c)80 d)85

Reply Like? Yes (144) | No (28)

(9 years ago)

d) 85

If wickets taken till last match=x, then total runs upto last match=12.4x
So (12.4x+26)/(x+5)=12.4-0.4=12
On solving, x=85

Like? Yes (89) | No (31)

(8 years ago)

hi i have a question . i have done msc (it) in 2014 . but i have no idea where to apply for job for mnc

Like? Yes (16) | No (8)

(9 years ago) "Other"

the area of equilateral triangle is 48 sq.cm..than length of side is................

Reply Like? Yes (5) | No (1)

(9 years ago)

10.52 cm.

Area=Sqrt(3)*(Side^2)/4=48, So Side^2=4*48/Sqrt(3) or Side=3^(1/4)*8=10.52

Like? Yes | No (1)

(9 years ago) "Other"

log root 3*a=6,what is the value of a=?

Reply Like? Yes | No

(9 years ago)

logroot3^(1/2)a=6
or log root3a=12
or e^12=3a
or a=e^12/3
now put value of e and solve otherwise keep it as answer

Like? Yes | No

(9 years ago)

here as v know if loga=x that implies a=e^x similarly here sqrt of 3 and a product is equal to 6 that implies a=e^6/sqrt3

Like? Yes | No

(9 years ago)

answer is so easy a=2 :P :D :D

Like? Yes | No

(9 years ago)

√3a=10^6......then 3a=10^3.....a=(10^3)/3..

Like? Yes | No

(9 years ago) "Other"

You need a 18% acid solution for a certain test, but your supplier only ships a 13% solution and a 43% solution. You need 120 lts of the 18% acid solution. the 13% solution costs Rs 82 per ltr for the first 67 ltrs, and Rs 66 per ltr for any amount in access of 67 ltrs. What is the cost of the 13% solution you should buy?

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

(9 years ago)

0.13x + 0.43y = 0.18 * 120 & x + y =120 => y = 120 - x
=> 0.13x + 0.43 (120 - x) = 0.18 * 120
=> x = 100

=> 100 lts of 13% solution

100 - 67 = 33

So,
67 * 82 + 33 * 66 = 7672

Therefore, Answer is Rs. 7672 for 100 lts of 13% solution.

Like? Yes (12) | No (3)

(9 years ago) "Other"

Gopal is climbing the stairs. He can jump 1 or 2 or 3 steps at a time. He wants to climb N steps. In how many ways can he reach the Nth step?

Reply Like? Yes | No

(9 years ago) "Other"

Hie frns.. Me geetanjali...
I am a fresher.. I wanted to know how to get into a company by off campus... I am searching In websites but m not getting any idea how to apply and get an entry for particular companies written test... Let me know if somebody could help me out..

Reply Like? Yes | No

(9 years ago)

visit https://nextstep.tcs.com/ first register for off campus then after few month there wiil be written exam..

Like? Yes | No

(9 years ago) "Other"

Dear frds,
I am yasin, I wrote exam July 25,2015, when I will get my results?

Reply Like? Yes | No

to (9 years ago) "Other"

hello lokesh can you help me in solving tcs question

Reply Like? Yes | No

(9 years ago) "Other"

1)A number in integer base n when written in base n-1 becomes 1030n-1 .The same number when written in base n+1 becomes 444n+1.The original number written in base 10 is
a)436 b)364 c)463 d)634
2)In a test containing 16 questions , contestants get a base core of 20 points for taking the test. 5 points for each correctly answered question and 2 points for each unanswered question.An incorrectly answered question is worth 0 points.Of the following scores which one is not attainable
a)96 b)97 c)94 d)95
3)A certain sum of money is sufficient to pay either George wages for 15 days or Mark wages for 10 days .For how long will it be sufficient if both George and Mark work together ?
a)5 b)6 c)9 d)8
4)A vendor of electronic gadgets priced his gadgets at Rs.146 per gadget but there were no buyers at all. There after he reduced the price of the gadgets (reprising it again to a whole number of rupees) and managed to sell all of them realizing RS.30960.Which of the following was a possible number of gadgets he had
a)217 b)43 c)215 d)195
5)Sum of the two numbers is 45.The sum of their quotient and its reciprocal is 2.05.The product of numbers is
a)450 b)205 c)400 d)500

Reply Like? Yes | No

(9 years ago) "Other"

Two pens and three pencils cost Rs 86. four Pens and a pencil cost Rs. 112. find the cost of a pen and that of a pencil.

Reply Like? Yes (9) | No

(9 years ago)

2x+3y=86 and 4x+y=112 so price of a pen is = 25 and price of pencil is = 12

Like? Yes (5) | No

(9 years ago) "Other"

10 years ago 10 people age was33. After 3 years a person of age 40 dies. After another 3 years another person of 40years dies.After another 3 years another person of 30 years dies. Find the present average age?

Reply Like? Yes | No

(9 years ago)

44 years

Before 10 years, total age of 10 people=33*10=330
After 3 yr. person aged 40 dies, means he was 37 before 3 years.
After another 3 yr. person aged 40 dies means he was 34 years before 6 years
After another 3 yr. person aged 30 dies means he was 21 years before 9 years
So total age of 7 people(excluding 3 people who died) before 10 years=330-(37+34+21)=238
Present average age=[238+(7*10)]/7=308/7=44

Like? Yes (1) | No

(9 years ago) "Other"

2. How many positive multiples of 10 that are less than 1000 are the sum of four consecutive integers

Reply Like? Yes | No

(9 years ago) "Other"

how to calculate square of 4404 base 17?

Reply Like? Yes | No

(9 years ago) "Other"

series 0,7,26,63,...........

Reply Like? Yes | No

(9 years ago)

first cube the no and minus 1= 124 (5^3-1)

Like? Yes | No

(9 years ago)

cubes -1
next one is 5^3-1=124

Like? Yes | No

to (9 years ago) "Other"

how many number have ever decreasing digits (eg.98640 or 732 or 81)? please note that none of the following are ever decreasing numbers 2 or 9 or 12 or 443 or 5298..
a.10!/9
b,2!/1+3!/2..........+9!/8+10!/9
c.2!/2+3!/2..........+9!2+10!/2
d.2^10-11

Reply Like? Yes | No

(9 years ago)

9876543210
chose any 2,3,4......,9,10 numbers
10c2 +10c3 + .......+ 10c10 = (2^10-11)

Like? Yes (3) | No

(9 years ago)

thank you rakesh ..for the help

Like? Yes | No

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