Discussion

Explanation:

When 8% of X is added to X, we get:

X + 0.08X

Now, again 8% of this result is added to the result.

⇒ (X + 0.08X) + 0.08(X + 0.08X)

⇒ X + 0.08X + 0.08X + 0.0064X

⇒ X + 0.16X + 0.0064X

⇒ 1.1664X

Alternately,

Here we have to successively increase X twice by 8%.

Final value of X = X × 1.08 × 1.08 = 1.1664X

Hence, option (b).

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