# CBSE Class 10 Maths Chapter 1 Real Numbers MCQ

CBSE CLASS 10 MATHEMATICS / MCQ | Multiple Choice Questions / REAL NUMBERS –Chapter 1

1. Every ———— can be written as the product of powers of primes.

A. Prime numbers

B. Composite numbers

C. Real numbers

2. For any two positive integers a and b, HCF (a, b) x LCM (a, b) = ————-

A. a + b

B. a x b

C. a – b

3. The product of three numbers is ———- to the product of three numbers HCF and LCM.

A. equal

B. not equal

C. greater

4. The sum or difference of a rational and an irrational number is ———-

A. rational

B. irrational

C. real

5. The decimal expansion of every ————- is either terminating or non-terminating repeating.

A. rational number

B. irrational number

C. real number

6. The product of a rational and irrational number is ————–

A. rational

B. irrational

C. complex

7. Every positive even integer is of the form ——–, where q is some integer.

A. q

B. 2q

C. 2q + 1

8. Every positive odd integer is of the form ———–, where q is some integer.

A. q

B. 2q

C. 2q + 1

9. The product and quotient of a non-zero rational and irrational number is —–

A. rational

B. irrational

C. real

10. 17/8 has a ————- decimal expansion.

A. Terminating

B. Non terminating repeating

C. None of these.

11. 29/343 has a ——– decimal expansion.

A. Terminating

B. Non terminating repeating

C. None of these.

12. HCF of 4052 and 12576 is ————-

A. 4

B. 5

C. 6

13. If HCF (306, 657) = 9 then LCM (306, 657) is —————–

A. 201042

B. 22338

C. 963

14. If p, q are two consecutive natural numbers, then HCF (p, q) is ——-

A. P

B. q

C. 1

15. A number s is called ————- if it cannot be written in the form p/q ,where p and q are integers and q not equal to zero.

A. rational

B. irrational

C. complex

**ANSWERS:**

1. Composite number

2. a x b

3. Not equal

4. Irrational

5. Rational number

6. Irrational

7. 2q

8. 2q + 1

9. Irrational

10. Terminating

11. Non terminating repeating

12. 4

13. 22338

14. 1

15. Irrational