Question

what will be rate of interest per annum, if the sum doubles itself in five years.​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

When we replace r with 0.05 (5%), we find t=14.2067, which means that applying an interest rate of 5% per year, the initial amount will double in 14.2067 years, or 14 years and almost 2 and a half months (2.48 to be exact)