You are planning for a retirement by considering compounding effect of annual return. 

i) How much will you have if you start to invest RM 100,000 today for the next 20 years at an expected return of 15% per year?

ii) You have RM 100,000 in an investment account today. You wish to retire in 20 years with a total amount of RM 3,000,000 in the investment account. Assuming you do not save any additional fund throughout these 20 years, what annual rate of return must you earn to reach this goal? How many years do you need if your return is 15% p.a.?

iii) You have RM 100,000 in an investment account today, and you plan to deposit an additional RM 20,000 at the end of every future year until your account totals RM 3,000,000. You expected to earn 15% annually on the account. How many years will it take to reach you goal?