use "T" to represent the total profit. The first receives 13 T remaining, 1 - 13 = 23T The seconds receives the remaining, which is 23 also 23 x 23 x 49 The third receives the left over, which is 23T - 49T = (6−49)T = 29T The third receives 29T which is equivalent to N12000 If 29T = N12, 000 T = 1200029 = N54, 000