Surds and Indices Questions and Answers for SSC and Bank Exams

Surds and Indices and Questions:

Q.17. The value of (8^–2  – 8^–26  )  is :

(A) 8 × 8 ^–26

(B) 7 × 8 ^–26

(C) 7 × 7 ^–25

(D) None of these

Q.18. (18)^3.5 ÷ (27)^3.5 × 6^3.5 =2^?

(A) 2.5

(B) 3.5

(C) 6.5

(D) 7

Q.19. The value of  is:

(A) 

(B)

(C) 

(D) 

Q.20. If 2^2n-1 =  , then the value of n is: 

(A) -3

(B) 2

(C) -2

(D) 3

Q.21. If 2ⁿ⁺⁴ – 2ⁿ⁺² = 3, then n is equal to:

(A) 0

(B) 1

(C) -1

(D) -2

Q.22. If 3^x – 3^x-1 = 18, then the value of x^x is:

(A) 9

(B) 18

(C) 27

(D) 36

Q.23. The value of is:

(A) 4

(B) 8

(C) 

(D) 

Q.24. The value of  is:

(A) 36

(B) - 27

(C) -36

(D) 72

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