Number System MCQs

Question 1

The unit digit in the product 771 × 663 × 365 = ?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 2

If sum of the two number is 80 and ratio is 3 : 5, then find numbers :

Accepted Answer

30, 50

Answer

50, 30

Answer

60, 20

Answer

20, 60

Question 3

$$\frac{2}{3}$$ of three-fourth of a number is :

Accepted Answer

$$\frac{1}{2}$$ of the number

Answer

$$\frac{1}{3}$$ of the number

Answer

$$\frac{8}{9}$$ of the number

Answer

$$\frac{11}{12}$$ of the number

Question 4

The greatest four digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28 :

Accepted Answer

9828

Answer

9882

Answer

9928

Answer

9288

Question 5

A number exceeds its two fifth by 75. The number is :

Accepted Answer

125

Answer

100

Answer

112

Answer

150

Question 6

The smallest number, which should be added to 756896, so as to obtain a multiple of 11, is :

Accepted Answer

3

Answer

1

Answer

2

Answer

5

Question 7

If sum of two numbers be a and their product be b, then the sum of their reciprocals is :

Accepted Answer

$$\frac{{a}}{{b}}$$

Answer

$$\frac{{1}}{{b}}$$ + $$\frac{{1}}{{b}}$$

Answer

$$\frac{{b}}{{a}}$$

Answer

$$\frac{{1}}{{ab}}$$

Question 8

If the numbers $$ \root 3 \of {9} , \root 4 \of 20 , \root 6 \of {25} $$ are arranged in ascending order, then the right arrangement is -

Accepted Answer

$$ \root 6 \of {25} , < \root 3 \of 9 , < \root 4 \of {20} $$

Answer

$$ \root 6 \of {25} , < \root 4 \of {20} , < \root 3 \of 9 $$

Answer

$$ \root 3 \of 9 , < \root 4 \of {20} , < \root 6 \of {25} $$

Answer

$$ \root 4 \of {20} , < \root 3 \of 9 , < \root 6 \of {25} $$

Question 9

Which of the following fraction is the smallest ? $$\frac{8}{{15}},$$ $$\frac{{14}}{{33}},$$ $$\frac{7}{{13}},$$ $$\frac{{11}}{{13}}$$

Accepted Answer

$$\frac{{14}}{{33}}$$

Answer

$$\frac{{8}}{{15}}$$

Answer

$$\frac{{7}}{{13}}$$

Answer

$$\frac{{11}}{{13}}$$