A resourceful home decorator manufactures two types of lamps say A and B. Both lamps go through two technician, first  a cutter, second a finisher. Lamp A requires 2 hours of th cutter’s time and 1 hour of the finisher’s time. Lamp B requires 1 hour of cutter’s and 2 hours of finisher’s time. The cutter has 104 hours and finisher has 76 hours of time available each month. Profit o one lamp A is Rs. 6.00 and on one lamp B is Rs.11.00. Assuming that he can sell all that he produces, how many of each type of lamps should he manufacture to obtain the best return.