4. Find the accumulated amount if a sum of RM15000 is invested for two years at 20% per annum compounded:

a. Annually

b. semi-annually c. quarterly

d. monthly

5. What is the nominal rate compounded monthly that will make $1000 become $2000 in 5 years? [ans:13.9%]

6. Suhaila invested a certain sum of money in an account that pays 5% compounded quarterly. The account will amount to RM1000 in 27 months time. Calculate the original principal that was invested. [ans: RM894.22].