QUESTION $2$

$[30]$

a$.$ Aruba Technologies is in the process of choosing the better of two equal$-$risk, mutually exclusive capital expenditure projects, Mano and Nano. The relevant cash flows for each project are shown in the following table. Aruba's cost of capital is $10\%.$

$\backslash$table$[[$Initial investment CF $($:${?}_0\},$Project Mano,Project Nano$],[$R$28,500,$R$27,000],[1,$R$10,000,],[2,10,000,$R$11,000],[3,10,000,10,000],[4,10,000,9,000]]$