GATE Mechanical Engineering (ME) 2017 Shift 1 Solved Paper

Two models, P and Q, of a product earn profits of Rs.100 and Rs.80 per piece, respectively. Production times for P and Q are 5 hours and 3 hours, respectively, while the total production time available is 150 hours. For a total batch size of 40, to maximize profit, the number of units of P to be produced is ________.