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Arithmetic Ability
Simple Interest

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Simple interest on a certain sum is 16/25 of the sum. Find the rate percent and time, If both are numerically equal.

A. Rate = 7% and Time = 7 years.

B. Rate = 8% and Time = 8 years.

C. Rate = 6% and Time = 6 years.

D. Rate = 5% and Time = 5 years.

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Correct choice: B

Explanation:

Let sum = X. Then S.I = 16x/25 Let rate = R% and Time = R years. Therefore, (x * R * R)/100 = 16x/25 => R = 40/5 = 8 Therefore, Rate = 8% and Time = 8 years.

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Arithmetic Ability Simple Interest

Arithmetic Ability
Simple Interest