$1\mathrm{.}1$ Indicate the difference between simple interest and compounded interest. $(2)1\mathrm{.}2$ Mr Omar wants to make an investment of R$125000$ in one on the well$-$known banks in South Africa. He then approaches three banks $($Bank A$,$ Bank B and Bank C$)$ which offered him different investment options. Bank A: $11,5\%$ compounded annually for $5$ years. Bank B: $11,11\%$ compounded quarterly for $5$ years. Bank C: $11,3\%$ compounded half yearly for $5$ years. Calculate the return from each investment after $5$ years and recommend to Mr Omar which bank should he invest in and why. $(11)1\mathrm{.}3$ Ms Marawa wants to join a ladies stokvel with her friends. She then chooses to be the last one to receive the money so that she can have a lot of money at the end of the year $($December $2023).$ In their stokvel, they each contribute R$2000$ at the end of each month to the person who is supposed to receive the money. $1\mathrm{.}3\mathrm{.}1$ Do you think that Ms Marawa made the right choice by choosing the last spot? Recommend the best spot to Ms Marawa.