12. A company manufactures two products P1 and P2, which require time on three different machines M1, M2 andM3• Product P1 requires 2 hours on machineM1 and 1 hour onM1• Product P2 requires 4 hours on machine M2 and 2 hours on machine M3• There are 50 hours available on machine M1, 16 hours on machine M2 and 20 hours on machine M3 per week. The per unit profit on products P1 and P2 is Rs 30 and Rs 50, respectively. Determine the output mix that will maximise the total profit per week, when only integer solution is acceptable.