Question

Which one of the following is not a prime number?


A)    31
B)    61
C)    71
D)    91

(112x54)=?

 

 


A)    67000
B)    70000
C)    76500
D)    72000

It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?

A.  216+1
B.  216-1
C.  7x223
D.  296+1


A)    Option A
B)    Option B
C)    Option C
D)    Option D

What least number must be added to 1056, so that the sum is completely divisible by 23 ?

 


A)    2
B)    3
C)    18
D)    21

How many two-digit numbers satisfy this property.: The last digit (unit's digit) of the square of the two-digit number is 8 ?

 


A)    1
B)    2
C)    3
D)    None of these

The square root of 64009 is:

 


A)    253
B)    347
C)    363
D)    803

If a number is chosen at random from the set {1, 2, 3…, 100}, then the probability that the chosen number is a perfect cube is


A)    1/25
B)    1/2
C)    4/13
D)    1/10

What is the probability of getting at least one six in a single throw of three unbiased dice?

   


A)    1/6
B)    125/216
C)    1/36
D)    91/216

In a simultaneous throw of two dice, what is the probability of getting a doublet?

    


A)    1/6
B)    1/4
C)    2/3
D)    3/7

A bag contains 4 red balls, 5 green balls and 6 white balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either red or green?

   


A)    2/5
B)    3/5
C)    1/5
D)    7/15
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