This is an engineering economics problem.

1. The volume ofthe raw material required for a certain machine part is 2.02 cu cm. The nished volume is 1.05 cu cm. The time for machining each piece is 45 seconds for steel and 30 seconds for brass. The cost of the steel is Php 32.5 per kg. and the value of steel scrap is negligible. The cost of the brass is Php 60.00 per kg and the value of brass scrap is Php 25.00 per kg. The wage of the operator is Php 40.00 per hour and the overhead cost of the machine is Php 50.00 per hour. The weight of steel and brass are 0.0031 and 0.0088 kg per cu cm, respectively. Which material will you recommend