When Burger Barn Hires One Worker, 20 Customers Can Be

Multiple Choice

When Burger Barn hires one worker, 20 customers can be served in an hour. When Burger Barn hires two workers, 50 customers can be served in an hour. The marginal product of the second worker is ________ customers served per hour.

A) 15
B) 30
C) 40
D) 67.5