$3\mathrm{.}5$ Ishka based in Durban has made a plan to invest R$500000$ at the end of each

year for the next $10$ years at an interest rate of $20\%$ per annum compounded

quarterly. How much will be the value of the investment after $10$ years.

$3\mathrm{.}6$ Oamogetswe a young business entrepreneur in Gauteng had decided that in $5$

years' time she needs to take her sister Keneilwe to holiday in New York in USA. The

amount she needs is R$600000$ in $5$ year's time. Calculate the amount she needs to

invest today at $20\%$ per annum compounded annually.

$3\mathrm{.}7$ Farah pays equal instalments into FNB Bank an investment of R$100000$ at the

end of each year into a savings account yielding an interest rate of $20\%$ per year,

compounded annually.

What is the future value of the investment at the end of three years?