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Arithmetic Ability
True Discount

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Q.

The true discount on Rs.1600 due to after a certain of 5% per annum is Rs.160. The time after which it is due is

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Correct choice: A

Explanation:

P.W. = Rs. (1600 - 160) = Rs. 1440 ∴ S.I. on Rs.1440 at 5% is Rs. 160. ∴ Time = [100 * 160 / 1440 * 5] = 20/9 years = [20/9 * 12] months = 27 months.
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