Question

how many years will rupees 8000 amount to 9261 at 5% per annum compounded annually

Answer 1

9261=8000(1+5/100)x
x= time
9261/8000=(1+1/20)x
(3√9261/8000)=(21/20)^x
(21/20)^3=(21/20)^x
x=3yearsss

P.s: THANKS ME LATER

Answer 2

9261 = 8000 (1 + 5/100)^R

9261/8000 = (21/20)^R

(21/20) ^3 = (21/20)^R.

So, R=3.