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At what simple interest rate percent per annum will a sum of money double in 15 years?

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At what simple interest rate percent per annum will a sum of money double in 15 years?
posted Dec 17, 2018 by Madhavi Latha

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1 Answer

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6.67%


If at x % the sum doubles in 15 years then we have 15x=100% --> x=100/15=6.67 % per year

answer Dec 17, 2018 by Hanifa Mammadov
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