Q 4. Ahmed , Raiha and Heidi buy a house for $ 160000. Ahmed pays $ 20000 , Raiha pays $ 80000 and Heidi pays the rest. Five years later they sell the house in $ 240000. They share the money in the same ratio that they paid for the house.(a). How much money they will get? (b) How much profit does Heidi make on the sale of the house?.