Question

find the amount if Rs 20000 is invested at 20% compound annually for 4 years

Answer 1

the amount will be 41472
I think it is right

Answer 2

Given P = 20000, R = 20%, n = 4 years.

We know that A = P(1 + r/100)^n

                            = 20000(1 + 20/100)^4

                            = 20000(6/5)^4

                            = 20000 * 1296/625

                            = 25920000/625

                            = 41472.


Hope this helps!