Number System MCQs

Question 1

If the sum of two numbers is 14 and their difference is 10, find the product of these two numbers.

Accepted Answer

24

Answer

18

Answer

20

Answer

22

Question 2

The greatest number by which the product of three consecutive multiples of 3 is always divisible is :

Accepted Answer

162

Answer

54

Answer

81

Answer

243

Question 3

If p3 - q3 = (p - q) (p - q)2 - xpq, then find the value of x :

Accepted Answer

- 3

Answer

1

Answer

3

Answer

- 1

Question 4

If n = 1 + x, where x is the product of four consecutive positive integers, then which of the following is/are true ? I. n is odd II. n is prime III. n is a perfect square

Accepted Answer

I and III only

Answer

I only

Answer

I and II only

Answer

None of these

Question 5

If the seven digit number 876p37q is divided by 225, then the value of p and q respectively are :

Accepted Answer

0 and 5

Answer

0 and 0

Answer

9 and 0

Answer

9 and 5

Question 6

What is the remainder when 231 is divided by 5 ?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 7

(800 ÷ 64) × (1296 ÷ 36) = ?

Accepted Answer

Answer

420

Answer

460

Answer

500

Answer

540

Question 8

The number of times 99 is subtracted from 1111 so that the remainder is less then 99 is :

Accepted Answer

11

Answer

10

Answer

12

Answer

13

Question 9

If p is a positive fraction less than 1, then

Accepted Answer

$$\frac{2}{p}$$ - p is a positive number

Answer

$$\frac{1}{p}$$ is less than 1

Answer

$$\frac{1}{p}$$ is a positive integers

Answer

p2 is less than p