R70000 is invested for five
years.calculate a compound interest rate
that would double the investment
You want
(1+r)^5 = 2
1+r = 2^0.2
r = 2^0.2 - 1
years.calculate a compound interest rate
that would double the investment
(1+r)^5 = 2
1+r = 2^0.2
r = 2^0.2 - 1