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A man invested x rupees for 4.5 years at a rate of r% simple interest. If the amount he received after 4.5 years is 1.75x, find the rate percentage.

A man invested x rupees for 4.5 years at a rate of r% simple interest. If the amount he received after 4.5 years is 1.75x, find the rate percentage. Correct Answer 16.66%

The rate = Interest * 100 / (amount invested * time) The interest = amount received – the amount invested = 1.75x – x = 0.75x The rate = 0.75 * 100 / (x * 4.5) = 75 / 4.5 = 16.66%

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