Practice Questions on Number System
Aptitude Questions and Answers

Easy Number System Question - 21

Q21.

What is the remainder left after dividing $1!+2!+3!.....+100!$ by $7$?

A.

0

B.

5

C.

14

D.

21

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Easy Number System Question - 22

Q22.

The highest power of 9 dividing 99! completely is

A.

12

B.

14

C.

22

D.

24

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Easy Number System Question - 23

Q23.

The number 3 divides ‘$a$’ with a result of ‘$b$’ and a remainder of 2.

The number 3 divides ‘$b$’ with a result of 2 and a remainder of 1.

What is the value of $a$?

A.

13

B.

17

C.

21

D.

23

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Easy Number System Question - 24

Q24.

When a particular positive number is divided by 5, the remainder is 2. If the same number is divided by 6, the remainder is 1. If the difference between the quotients of division is 3, then find the number.

A.

37

B.

97

C.

67

D.

87

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Easy Number System Question - 25

Q25.

It is given that $2^{32} + 1$ is exactly divisible by a certain number. Which one of the following is also divisible by the same number?

A.

$2^{96} + 1$

B.

$2^{16} + 1$

C.

$2^{32} + 1$

D.

$2^{64} + 1$

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