Answer:
3.33 valves/labor hour
Step-by-step explanation:
Labor productivity refers to the number of goods produced with the employment of an hour into the production. It is calculated by dividing the number of goods produced by the number of labor hours employed.
Labor productivity of the line:
= Number of valves produced ÷ (Number of labor hours in a shift × Number of persons in assembly line)
= 200 ÷ (4 × 15)
= 200 ÷ 60
= 3.33 valves per labor hour