Correct Answer: Option D

Explanation

2n = 128

2n = 27

n = 7

(2n - 1)(5n - 2) = (2n - 2.2)(5n - 2) put n = 7

(2n - 1)(5n - 2) = 2(2n - 2 x 5n - 2)

= 2(2 x 5)n - 2

= 2(10n - 2) put n = 7

(2n-1)(5n-2) = 2(105)

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