# Number System Question and Answer Set 1

Hi students, welcome to **Amans Maths Blogs (AMB)**. On this post, you will get the Number System Question and Answer Set 1. It will help you to practice the questions on the topics of maths as Number System.

**Number System Question and Answer: Ques No 1**

The difference between two positive numbers is 3. If sum of their squares is 369, then the sum of the numbers is,

**Options:**

A. 25

B. 81

C. 27

D. 33

**Answer: C**

**Number System Question and Answer: Ques No 2**

The sum of the factors of a number is 124. What is the number?

**Options:**

A. Number lies between 40 and 50

B. Number lies between 50 and 60

C. Number lies between 60 and 80

D. More than one such number exists

**Answer: D**

**Number System Question and Answer: Ques No 3**

What least number must be added to 1056, so that the sum is completely divisible by 23?

**Options:**

A. 2

B. 3

C. 18

D. 21

**Answer: A**

**Number System Question and Answer: Ques No 4**

Which of the following statements is INCORRECT?

**Options:**

A. If ‘a’ is a rational number and ‘b’ is irrational, then a + b is irrational.

B. The product of a non-zero rational number with an irrational number is always irrational.

C. Addition of any two irrational numbers can be rational.

D. Division of any two integers is an integer.

**Answer: D**