5 $ 250 440 $ 1,720
6 $ 300 480 $ 1,780
7 $ 350 500 $ 1,820
( Part A ) ( 5 points ) What is the marginal product of the second worker ?.
( Part B ) ( 5 points ) What is the marginal revenue product ( MRP ) of the fourth worker ?
( Part C ) ( 5 points ) What is the marginal cost ( MC ) of the first worker ?
( Part D ) ( 5 points ) Based on your knowledge of marginal analysis , how many workers should you hire ? Explain you answer .
( Points : 20 )