Number System MCQs

Question 1

If m and n are positive integers, then the digit in the unit's place of 5 n + 6 m is always :

Accepted Answer

1

Answer

5

Answer

6

Answer

n + m

Question 2

For any integral value of n, 3 2n + 9n + 5 when divided by 3 will leave the remainder

Accepted Answer

2

Answer

1

Answer

0

Answer

5

Question 3

If x is the remainder when 3 61284 is divided by 5 and y is the remainder when 4 96 is divided by 6, then what the value of (2x - y)?

Accepted Answer

-2

Answer

-4

Answer

2

Answer

4

Question 4

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

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

Question 5

The quotient when 10 100 is divided by 5 75 is:

Accepted Answer

2 75 × 10 25

Answer

10 25

Answer

2 75

Answer

2 25 × 10 75

Question 6

The rightmost non-zero digit of the number 30 2720 is

Accepted Answer

1

Answer

3

Answer

7

Answer

9

Question 7

(9 6 + 1) when divided by 8, would leave a remainder of :

Accepted Answer

2

Answer

0

Answer

1

Answer

3

Question 8

The greatest whole number, by which the expression n 4 + 6n 3 + 11n 2 + 6n + 24 is divisible for every natural number n , is -

Accepted Answer

48

Answer

6

Answer

24

Answer

12

Question 9

The number formed from the last two digits (ones and tens) of the expression 2 12n - 6 4n , where n is any positive integer is :

Accepted Answer

0

Answer

10

Answer

30

Answer

2