# NCERT Mathematics Class 9 Exemplar Ch 1 Number Systems Part 3 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Q. 15. The value of is equal to

(A)

(B) 2

(C) 4

(D) 8

Answer: B

Q. 16. If = 1.4142, then is equal to

(A) 2.4142

(B) 5.8282

(C) 0.4142

(D) 0.1718

Answer: C

Q. 17. equals

(A)

(B)

(C)

(D)

Answer: C

Q. 18. The product . . equals

(A) (B) 2 (C) 12 (D)

Answer: B

Q. 19. Value of is

(A)

(B)

(C) 9

(D)

Answer: A

20. Value of × is

(A) 4

(B) 16

(C) 64

(D) 256.25

Answer: A

21. Which of the following is equal to x?

(A)

(B)

(C)

(D)

Answer: C