Correct Answer: 12%
Explanation:
Let sum = Rs. P. Then amount = Rs. (8P/5) ∴ S.I = Rs. (8P/5 - P ) = Rs.(3P/5) ∴ Required rate = (100 x SI) / (P x T) = [(100 x 3P/5) / (P x 5)]% = 12%
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