Math, asked by aashika3, 1 year ago

At what rate percent per annum wil will a sum of money double itself in eight years.

Answers

Answered by rani12344
7
after eight years the sum becomes amount

let sum p

after eight years the sum becomes double
2p means it becomes amount

simple interest is amount -principal
means 2p -p =p =si


rate of interest formula=si ×100÷principal ×time

=p×100÷p×8=12.5
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