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Dimple

India

Punjab

Time: 00:01:33

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Maths Quotes

2 is not equal to 3 – not even for very large values of 2.

Unknown

Arithmetic is numbers you squeeze from your head to your hand to your pencil to your paper till you get the answer.

Carl Sandburg

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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

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to (8 years ago) "Other"

The difference between the compound interest and the simple interest accrued on an amount of Rs. 18,000 in 2 years was Rs. 405. What was the rate of interest p.c.p.a?

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(8 years ago)

The difference between the compound interest and the simple interest accrued on an amount of Rs. 18,000 in 2 years was Rs. 405. What was the rate of interest p.c.p.a?

Like? Yes (1) | No

(8 years ago)

Ans: 15%

The difference b/w the compound interest and the simple interest over 2 years=P*(r/100)^2
P*(r/100)^2=405;
18000(r/100)^2=405;
r^2=405*10000/18000=225
r=15 %

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to (8 years ago) "Other"

hey bro i am also 2014 batch got my interview in TM on 4 th , can you please share the topics u encountered and which material helped you out

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(8 years ago) "Other"

Hello, I hav got call letter for cognizant through amcat,so again do they conduct aptitude+logical+English test or TR and HR round...guys plz do share ur experience and what all to be prepared for TR round also

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(8 years ago) "Other"

Thanx for prize amount. This was my first experience with m4maths. Once again thanx m4maths.

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(8 years ago) "Other"

how many questions can attempt to qualify elitmus please explain?

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to (8 years ago) "Other"

exam date-28/04/2016 venue-Sharda University

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(8 years ago) "Other"

Anyone can tell me how can I get good score in elitmus?

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(8 years ago) "Other"

By selling 12 toffees for a rupee, a man loses 20%. How many for a rupee should he sell to get a gain of 20% ?

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(8 years ago) "Other"

20. Two trains, each 100 m long are moving in opposite directions. They cross each other in 8 seconds. If one is moving twice as fast the other, the speed of the faster train is

A. 75 km/hr

B. 60 km/hr

C. 35 km/hr

D. 70 km/hr

Hide Answer|Notebook | Discuss
Here is the answer and explanation

Answer : Option B

Explanation :

Total distance covered = 100+100 = 200 m

Time = 8 s

let speed of slower train is v . Then the speed of the faster train is 2v

(Since one is moving twice as fast the other)

Relative speed = v + 2v = 3v

3v = 200/8 m/s = 25 m/s

=> v = 25/3 m/s

Speed of the faster train = 2v = 50/3 m/s = (50/3)×(38/15) km/hr = 5×36/3 = 5×12 = 60 km/hr

Reply Like? Yes (1) | No

(8 years ago) "Other"

log(0.57)=bar(1).756 then value of log 57+(3)log(0.57)+(0.5)log(0.57) can someone solve this the correct ans is given as bar(1).146 but i am getting it as 0.902

Reply Like? Yes (1) | No

(8 years ago) "Other"

Can anyone help me.I have doubt on technical interview... questions from your projects asked while you are attending interview after finishing college.... Because I fear that my is very simple

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(8 years ago) "Other"

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?

Reply Like? Yes (1) | No

(8 years ago)

days required = 15 days

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(8 years ago) "Other"

The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annum simple interest is:

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(8 years ago) "Other"

what is address of ipv6

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(8 years ago) "Other"

6,24,29,116,121,?,489

Reply Like? Yes (6) | No (2)

(8 years ago)

484 is the ans
6*4=24 24+5=29
29*4=116 116+5=121
121*4=484 484+5=489

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(8 years ago)

484 is the answer

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(8 years ago) "Other"

There is a ladder resting against a wall of height 8m with a top of ladder coinciding with the of wall. when the foot of ladder is moved 2m away from the wall; the top of ladder slips down & coincides with the foot of the wall .find the length of ladders

Reply Like? Yes (7) | No (1)

(8 years ago)

17m

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to (8 years ago) "Other"

Q: Tom is chasing Jerry. In the same interval of time Tom jumps 8 times while Jerry jumps 6 times. But the distance covered by Tom in 7 Jumps is equal to the distance covered by Jerry in 5 Jumps. The ratio of speed of Tom and Jerry is ?

Reply Like? Yes (2) | No

(8 years ago)

(8*5/(6*7)=40/42

Like? Yes (2) | No

(8 years ago)

40/42

let distance be d and time interval be t

distance covered by tom in one jump=d/7
distance covered by jerry in one jump=d/5

time taken by tom for one jump=t/8
time taken by jerry for one jump=t/6

speed=distance/time

toms speed=(distance covered in one jump)/(time taken for one jump)
=(d/7)/(t/8)=8d/7t
similarly,
jerrys speed=(d/5)/(t/6)=6d/5t

toms speed/jerrys speed=(8d/7t)/(6d/5t)=40/42

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(8 years ago) "Other"

Quantitative- 53.5%
Eng- 59.9%
Logical-65.4%
Computer science -96%
Computer Programming- 97%
Can I expect any interview calls from software companies....????

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(8 years ago) "Other"

hi frnds gud evng to all.....

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to (8 years ago) "Other"

in a palace 1200 soldiers had food for 28 days after 4days 300 soliders left. the remaining food will be sufficient for how many days.

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

(8 years ago)

after 4 days , 1200 soldiers will have sufficient food for 28-4 = 24 days
but 300 soldiers left and so 900 remain in palace, therefore food will last for (24 * 1200)/900 = 32 days

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(8 years ago) "Other"

a boat can travel 10.2km upstream in 51 minutes. if the speed of the current is 1/5 of the speed of he boat in still water, how much distance can the boat traveled downstream in 48 minutes?

Reply Like? Yes (1) | No

(8 years ago)

14.4 km.

If speed of the boat=x kmph, then speed of the current=x/5 kmph and upstream speed=x-(x/5)=4x/5
As boat can travel 10.2 km upstream in 51 minutes, so 10.2/(4x/5)=51/60 ,x=15
So speed of the current=x/5=15/5=3 kmph and downstream speed=15+3=18 kmph
Distance that boat can travel in 48 minutes or 4/5 hours =18*4/5=14.4 km

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to (8 years ago) "Other"

how can we give a mango to two persons equally?

Reply Like? Yes (2) | No

(8 years ago)

By making mango juice, we can divide mango juice in two equal parts.

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(8 years ago) "Other"

feeling happy....:)

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to (8 years ago) "Other"

The ratio of number of balls in bags x, y is 2: 3. Five balls are taken, from bag y and are dropped in bag x. Number of balls are equal in each bag: now. Number of balls in each bag now is?

a) 20 b) 30

Reply Like? Yes (2) | No

(8 years ago)

25

If initially there were 2a & 3a balls in bag x and bag y respectively, then
3a-5=2a+5
a=10
So number of balls in each bag now=3a-5 or 2a+5 =25

Like? Yes (3) | No

(8 years ago) "Other"

Two circular metallic discs have a thickness of 15 mm. Their areas are in the ratio of 9:1. The smaller dia disc is pressed against the bigger disc and rotated around it on a flat surface. How many times will the small disc rotate before it completes one circle of the bigger disc?

Reply Like? Yes (1) | No

(8 years ago)

let r1 be the radius of larger disk r2 be the radius of small disk

pi (r1)² /pi(r2)² =9/1

r1/r2 =3/1

let r1 =3x and r2 = x

2 *pi*r1 = 6pix
2*pi *r2 =2pix

perimeter are in the ratio 3:1

therefore small disc rotate 3 times in one rotation of larger disc

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(8 years ago) "Other"

what are the perfect sites for to prepare tech mahindra exam?

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(8 years ago) "Other"

how to prepare for aptitude test for tcs.?pls tell me sugession .

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(8 years ago)

campusgate and m4maths are more than enough for the apti

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to (8 years ago) "Other"

Brother when the series is squared,then we use the formulae
(n(n+1)(2n+1))/6, how you changed the formulae...help me, still I am very much confused....

Reply Like? Yes (1) | No

(8 years ago)

Hi bro,
1^2 + 3^2 +5^2 +.....,n term =(n/3)*(2n+1)*(2n-1)------(1)
2^2 + 4^2 +6^2 +.....,n term =(2n/3)*(n+1)*(2n+1)------(2)
For even,
(1^2 - 2^2 +3^2 -4^2+......n term)= (1^2 + 3^2 +5^2 +...n/2 term) - (2^2 + 4^2 +6^2 +.....,n/2 term)
Using (1) & (2)
(1^2 - 2^2 +3^2 -4^2+......n term)= -n*(n+1)/2
For Odd,
(1^2 - 2^2 +3^2 -4^2+......n term)= (1^2 + 3^2 +5^2 +...(n+1)/2 term) - (2^2 + 4^2 +6^2 +.....,(n-1)/2 term)
Using (1) & (2)
(1^2 - 2^2 +3^2 -4^2+......n term)= n*(n+1)/2

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(8 years ago)

The difference between the compound interest and the simple interest accrued on an amount of Rs. 18,000 in 2 years was Rs. 405. What was the rate of interest p.c.p.a?
can you help me to solve in the easiest way?

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(8 years ago) "Other"

I wanna josh technology solved placement papers plzz can anyone help ??

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(8 years ago) "Other"

Hi,
Please tell me best resume maker sites or give me resume at my email id
Email id : rajaneeshsingh147@gmail.com

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to (8 years ago) "Other"