Question

a sum of money double itself in 8 years what is the rate of interest

Answer 1

Answer: Time,8years

Let p=x

Then A=2x

S.I=2x-x

=x

Rate=?

Rate=si*100/p*t

.......=x*100/x*8

.............=25/2%

Ans=rate=12.5%

Step-by-step explanation: