# Class 10 Math Chapter 1 MCQ Question Answer NCERT Solution

NCERT Class 10th Math chapter 1 MCQ Question Answer and can take online test here.. CCL Chapter helps you in it..  NCERT Solution for Class 10 Maths Chapter 1 MCQ of real numbers NCERT Solution for CBSE, HBSE, RBSE and Up Board and all other chapters of class 10 math.

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NCERT Class 10 Math chapter 1 Real Numbers MCQ Question Answer with Online test of Objective type Solution.

## Class 10 Math Chapter 1 MCQ Question Answer

1.  3825 as a product of prime factors is represented as
(A) 32 × 52 ×  17
(B) 32 × 52 ×  19
(C) 32 × 52 ×  7
(D) 32 × 52 ×  11

Ans. (A) 32 × 52 ×  17

2. 5+5√5 is a
(A) natural number
(B) whole number
(C) rational number
(D) irrational number

Ans. (D) irrational number

3.  HCF of 336 and 64 is
(A) 2
(B) 8
(C) 16
(D)  64

Ans. (C) 16.

4. Decimal expansion of  rational number 64/455 is
(A) terminating
(B) non-terminating repeating
(C) Both A and B
(D) none of the above.

Ans. (B) non-terminating repeating ( because 455 cann’t be represented in the form of 2m × 5n )

5. P/q form of 0.375 is
(A) 2/7
(B) 3/8
(C) 4/9
(D) 5/11

Ans. (B) 3/8.

6. P/q form of 0.104
(A) 13/125
(B) 14/129
(C) 11/97
(D) none of the above.

Ans. (A) 13/125.  As 0.104 = 104/1000 = 13/125.

7. Number of factors of 10 is
(A) 2
(B) 3
(C) 4
(D) 5

Ans. (C) 4

8. Number of prime factors of 10 is
(A) 1
(B) 2
(C) 3
(D) 4

Ans. (B) 2

9. HCF of two numbers is 4. If one of them is 20 then other may be
(A) 24
(B) 28
(C) 44
(D) all of the above.

Ans. (D) all of the above.

10. LCM of two numbers is 100. If one number is 20 then other may be
(A) 100
(B) 50
(C) Both A and B
(D) none of the above.

Ans. (C) Both A and B

11. The relation between HCF and LCM of 12 and 20 will be:
(A) HCF> LCM
(B) HCF < LCM
(C) HCF = LCM
(D) None of these.

Ans. (B) HCF < LCM.

12. If a and b are two positive integers, then the relation between their LCM and HCF will be:
(A) HCF> LCM
(B) HCF < LCM
(C) HCF = LCM
(D) None of these.

Ans. (B) HCF < LCM.

13. If g and l are LCM and HCF of two positive integers, will be:
(A) g > l
(B) g < l
(C) g=l
(D) None of these.

Ans. (A) g > l.

14. If HCF of 306 and 657 is 9, then its LCM is:
(A) 2482
(B) 22338
(C) 2754
(D) 5913.

Ans. (B) 22338.

15. If HCF of 96 and 404 is 4, then its LCM is:
(A) 38784
(B) 9696
(C) 2274
(D) 22338.