Number System MCQs

Question 1

Two consecutive natural numbers are always . . . . . . . .

Accepted Answer

co-prime numbers

Answer

even numbers

Answer

odd numbers

Answer

prime numbers

Question 2

The least number that must be subtracted from 1294 so that the remaining number when divided by 9, 11, 13 will leave in each case the same remainder 6 is:

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 3

What least number must be subtracted from 210, so that the sum is completely divisible by 11?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 4

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is:

Accepted Answer

220030

Answer

22030

Answer

1220

Answer

1250

Question 5

In which set of numbers every pair is coprime to each other?

Accepted Answer

21, 32, 43

Answer

35, 48, 55

Answer

24, 35, 49

Answer

42, 55, 69

Question 6

Which of the following given value is greater than $$\root 3 \of {12} \,?$$

Accepted Answer

$$\root {12} \of {33214} $$

Answer

$$\root 9 \of {1500} $$

Answer

$$\root 5 \of {60} $$

Answer

$$\root 6 \of {121} $$

Question 7

Sum of three fractions is $$2\frac{{11}}{{24}}.$$ On dividing the largest fraction by the smallest fraction, $$\frac{7}{6}$$ is obtained which is $$\frac{1}{3}$$ greater than the middle fraction. The smallest fraction is

Accepted Answer

$$\frac{3}{4}$$

Answer

$$\frac{5}{8}$$

Answer

$$\frac{5}{6}$$

Answer

$$\frac{3}{7}$$

Question 8

Each prime number has . . . . . . . . factor/factors.

Accepted Answer

2

Answer

1

Answer

4

Answer

0

Question 9

The greatest perfect square number of digits is?

Accepted Answer

998001

Answer

999001

Answer

998009

Answer

998101