Math, asked by veer68, 1 year ago

at what rate per cent per annum will a some of money double itself in 8years

Answers

Answered by Faizan11111
1
Let Principal=P, Rate =R℅per annum, Time =n years .
simple interest (SI) =(P*R*T)/100
Thus, 2P=P+(P*R*T)/100
P= P*R*8/100
R=100/8
So,R=12.5℅

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