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