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) 3^{2} × 5^{2} × 17

(B) 3^{2} × 5^{2} × 19

(C) 3^{2} × 5^{2} × 7

(D) 3^{2} × 5^{2} × 11

**Answer**

**Ans. (A) 3 ^{2} × 5^{2} × 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 2 ^{m} × 5^{n} )**

**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.**