Answer:
a. 3 cases
Explanation:
Given that
Number of cases sell in a week = 4 cases
Together the cases sold is 7 cases in a week
Based on the information, the atul marginal product is 3 cases as the marginal product refers to the additional per unit to the extra labor hired
The three cases is come from
= Together cases sold - Number of cases sell in a week
= 7 cases - 4 cases
= 3 cases