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
Answer
Ans. (A) 32 × 52 × 17
2. 5+5√5 is a
(A) natural number
(B) whole number
(C) rational number
(D) irrational number
Answer
Ans. (D) irrational number
3. HCF of 336 and 64 is
(A) 2
(B) 8
(C) 16
(D) 64
Answer
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.
Answer
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
Answer
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.
Answer
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
Answer
Ans. (C) 4
8. Number of prime factors of 10 is
(A) 1
(B) 2
(C) 3
(D) 4
Answer
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.
Answer
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.
Answer
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.
Answer
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.
Answer
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.
Answer
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.
Answer
Ans. (B) 22338.
15. If HCF of 96 and 404 is 4, then its LCM is:
(A) 38784
(B) 9696
(C) 2274
(D) 22338.
Answer
Ans. (B) 9696.