Question $4$

The following information pertains to Lailai Sdn Bhd:

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

Cash is collected from customers in the following manner:

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