QUESTION 6 The below table shows the contractor's monthly revenue for constructing a small house which will take 6 months to erect. The contractor prepares an invoice and submits it every two months and gets paid one month later. If the advance payment is 13 % of total revenue, retention 17%, and Mark- up 20%. TIME (Month) 1 2 3 4 5 Monthly Revenue 25 59 52 46 18 39 The cumulative income (in thousands of Riyals) to the contractor at the end of month number 5 is