Q5. Hindustan Construction Company (HCC) needs 3,3,4 and 5 million cubic feet of fill at four earthen dam sites in Punjab. It can transfer the fill from three mounds A, B, and C where 2,6, and 7 million cubic feet of fill is available, respectively. Costs of transporting one million cubic feet of fill from four mounds to the four sites in lakhs are given in the table.