Ganesh and sarath walk up an escalator which moves up with a constant speed. For every two steps that ganesh takes, sarath takes one step. Ganesh gets to the top of the escalator after having taken 30 steps, while sarath takes only 20 steps to reach the top.If the escalator were turned off,how many steps should each o them take to reach the top

1.  30

2.  40

3.  45

4.  60

5.  none of these

5
Correct Answer :

60

Explanation :
No Explanation available for this question

Find the number of pairs of real numbers x, y such that (x2 + 8x +17)(y2 − 2y + 6) = 5

1.  0

2.  1

3.  2

4.  3

5.  4

5
Correct Answer :

4

Explanation :
No Explanation available for this question

Find the no of triplets (x, y, z) of positive integers such that xy + yz +zx = xyz

1.  0

2.  1

3.  4

4.  7

5.  10

5
Correct Answer :

4

Explanation :
No Explanation available for this question

If the lcm of (10!)(18!) and (12!)(17!) is expressed as a!b!/c! where a, b are two digit positive numbers and c is a one digit positive number. Then abc equals

1.  54

2.  648

3.  216

4.  324

5.  none of these

5
Correct Answer :

648

Explanation :
No Explanation available for this question

Find the remainder when 2184 is divided by 343

1.  0

2.  1

3.  49

4.  341

5.  none of these

5
Correct Answer :

none of these

Explanation :
No Explanation available for this question

Two friends get home at 2:30 P.M. They both go to bed 10 P.M. If both friends will go to a park twice for 15 minutes, what is the probability that they will be able to see each other at any random time between the two time intervals Assume that the travel to and from the park takes no time.

1.  25/225

2.  8/15

3.  27/225

4.  29/225

5.  3/17

5
Correct Answer :

29/225

Explanation :
No Explanation available for this question

Let p be a prime number such that f(p) = (2 + 3) − (22 + 32) + (23 +33) − ... − (2p−1 + 3p−1) + (2p + 3p) is divisible by 5. If p1, p2 and p3 are the three smallest such primes, then p1 + p2 + p3 equals

1.  15

2.  19

3.  21

4.  25

5.  35

5
Correct Answer :

35

Explanation :
No Explanation available for this question

Let a, b, c be positive integers such that a2 +b2 = c2(1+ab). then which is true

1.  a ≥ b

2.  b ≥ c

3.  b ≥ c

4.  a,b,c

5.  b,c

5
Correct Answer :

b,c

Explanation :
No Explanation available for this question

How many positive integral values of x and y satisfy xy = (y + 1)4

1.  1

2.  2

3.  3

4.  4

5.  Infinite

5
Correct Answer :

4

Explanation :
No Explanation available for this question

Positive integers x and y satisfy 3x2 − 8y2 + 3x2y2 = 2008. Find the product x2y

1.  28

2.  49

3.  16

4.  98

5.  112

5
Correct Answer :

112

Explanation :
No Explanation available for this question

Interview Questions

 MongoDB Java Script Node JS PHP JQuery Python