When Coffee 'N' Cream in Victoria,British Columbia Hires Two Students,64

Multiple Choice

When Coffee 'n' Cream in Victoria,British Columbia hires two students,64 customers can be served in one hour.Suppose the manager of the restaurant observes that after hiring the third student,80 customers are being served in one hour.The marginal product of the third student is ________ customers per hour.

A) 4
B) 16
C) 8
D) 26.67
E) 32