Number System MCQs

Question 1

If m and n are positive integers and (m - n) is an even number, then (m2 - n2 ) will always be divisible by :

Accepted Answer

4

Answer

6

Answer

8

Answer

12

Question 2

The least among the fractions $$\frac{{15}}{{16}}$$ , $$\frac{{19}}{{20}}$$ , $$\frac{{24}}{{25}}$$ , $$\frac{{34}}{{35}}$$ is :

Accepted Answer

$$\frac{{15}}{{16}}$$

Answer

$$\frac{{34}}{{35}}$$

Answer

$$\frac{{19}}{{20}}$$

Answer

$$\frac{{24}}{{25}}$$

Question 3

What decimal of a week is an hour ?

Accepted Answer

0.0059

Answer

0.0062

Answer

0.062

Answer

0.059

Question 4

If $$\frac{3}{4}$$ of a number is 7 more than $$\frac{1}{6}$$ of the number then $$\frac{5}{3}$$ of the number is :

Accepted Answer

20

Answer

12

Answer

18

Answer

15

Question 5

The solution to the inequality 12x - 66 $$ \leqslant $$ 6 is :

Accepted Answer

x $$ \leqslant $$ 6

Answer

0 $$ \leqslant $$ x $$ \leqslant $$ 6

Answer

-6 $$ \leqslant $$ x $$ \leqslant $$ 6

Answer

-6 $$ \leqslant $$ x $$ \leqslant $$ 0

Question 6

If a (0.4)2 , b = 0.04 and c = $$\frac{{2}}{{5}}$$ , then the correct relationship among the three is :

Accepted Answer

c > a > b

Answer

b > a > c

Answer

a > b > c

Answer

a > c > d

Question 7

The least number which must be added to the greatest number of 4 digits in order that the sum may be exactly divisible by 307 is :

Accepted Answer

132

Answer

32

Answer

43

Answer

75

Question 8

Two positive whole numbers are such that the sum of the first and twice the second number is 8 and their difference is 2. The numbers are :

Accepted Answer

4, 2

Answer

7, 5

Answer

3, 5

Answer

6, 4

Question 9

A, B, C and D purchase a gift worth Rs. 60. A pays $$\frac{{1}}{{2}}$$ of what others are paying. B pays $$\frac{{1}}{{3}}$$ of what others are paying and C pays $$\frac{{1}}{{4}}$$ of what others are paying. What is the amount paid by D ?

Accepted Answer

13

Answer

15

Answer

12

Answer

14