### Number System Math MCQS With Answers, Binary and ecimal Aptitude MCQS Test Preparation

Number System Math MCQS is designed to measure students’ problem solving skills and understanding of mathematics in a standardized format. Binary and Decimal Aptitude MCQS Test Preparation by practicing and reviewing your answers regularly, you can improve your accuracy and performance in solving MCQS mathematics By Nokryan. Maths MCQS and answer preparation will help you score well.

1. ‘÷’ is

- A binary operation in N
**A binary operation in R\{0}**correct- A binary operation in Qc
- A binary operation in R

2. Every even integer is also

- Natural number
- Irrational number
- Rational number
**correct** - Whole number

3. √34 is

- A rational number
- An irrational number
**correct** - A negative integer
- A natural number

4. ‘÷’ is

- A binary operation in R
- A binary operation in Qc
- A binary operation in E
- Not A binary operation in R
**correct**

5. ‘-’ is

- A binary operation in O
- A binary operation in R
**correct** - Not A binary operation in R
- A binary operation in Qc

6. If n is prim, then√n is

- Natural number
- Rational number
- Whole number
- Irrational number
**correct**

7. √36 is

- An irrational number
- An even integer
- A factor of 26
- A rational number
**correct**

8. ‘.’ Is

- A binary operation in Qc
- Not a binary operation in E
- A binary operation in R
**correct** - Not a binary operation in R

9. A number which can be written in the form p/q, where p and q are relatively prime integers and q = 0 is called the

- Index number
- Irrational number
- Rational number
**correct** - Imaginary number

10. ‘+’ is

- Not a binary operation in E
- A binary operation in Qc
- A binary operation in R
**correct** - Not a binary operation in R

11. Every non-repeating non-terminating decimal is

- none of these
- Irrational number
**correct** - integer
- Rational number

12. If n is a perfect square, then √n is

- An irrational number
- Always an even integer
- Always an odd integer
- A rational number
**correct**

13. 3 is

- A negative integer
- A rational number
**correct** - An irrational number
- An odd integer

14. √3 is

- A natural number
- An irrational number
**correct** - A negative integer
- A rational number

### 15. Every natural number is also

- negative integer
- rational number
**correct** - irrational number
- even integer

16. π is

- An irrational number
**correct** - A rational number
- A whole number
- A natural number

17. The multiplicative identity of real numbers is

- 1
**correct** - 3
- 0
- 2

18. Every recurring decimal or terminating decimal represents the

- Rational number
**correct** - Irrational number
- Natural number
- Integer

19. 0 is

- An even integer
**correct** - An irrational number
- An odd integer
- A natural number

20. If ‘*’ is a binary operation in a set A, then for all a,b Є A,

- A x b Є A
- A*b Є A
**correct** - A – b Є A
- A + b Є A

21. The additive inverse of 2 is

- 1
- -2
**correct** - 0
- 1/2

22. The additive identity of real numbers is

- 1
- 2
- 0
**correct** - 3

23. Every odd integer is also

- Rational number
**correct** - Positive integer
- Negative integer
- Irrational number

24. Every integer is also

- natural number
- irrational number
- Whole number
- negative integer
**correct**

25. ‘÷’ is

- A binary operation in N
- A binary operation in Q – {0}
**correct** - A binary operation in R
- A binary operation in Qc