A sum becomes 6 fold at 5% per annum. At what rate, the sum becomes 12 fold?

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Accepted Answer

SI at 5% = 6P - P = 5P ∴ 5P = (P x 5 x T) /100 ⇒ T = 100 yr Now, for new rate (R), 11P = (P x R x 100)/100 ∴ R =11%

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