Question $4$

The following information pertains to Lailai Sdn Bhd:

$\backslash$table$[[$Month$,$Sales,Purchases$],[,$RM$\text{'}000,$RM$\text{'}000],[$July$,25,8],[$August$,34,12],[$September$,38,14],[$October$,42,16],[$November$,48,18],[$December$,60,20]]$

Cash is collected from customers in the following manner:

$\backslash$table$[[$Month of sales $(2\%$ cash discount$).,30\%$