Which of the following has the greatest value when x = C1/4?

Which of the following has the greatest value when x = C1/4?
A . x C1
B . C3/8x
C . 4x + 3
D . 16x
E . 1/81x

Answer: E

Explanation:

x C1 = 1/x = 1 ÷ (C1/4) = C4;

C3/8x = C3 ÷ 8 × (C1/4) = 3/2;

4x + 3 = 4 × (C1/4) + 3 = C1 + 3 = 2;

16x = 16 (C1/4) = 1 ÷ 161/4 = 1/2;

1/81x = 1 ÷ 81 (C1/4) = 811/4 = 3.

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