Answer: d. 4.17 parts per hour
Explanation:
There are 4 fulltime workers and 1 halftime worker working in 8 hour shifts.
= 4 workers * 8 hours
= 32 hours
Halftime worker = 8/2 = 4 hours
Total hours = 32 + 4 = 36 hours
Labor productivity = Quantity produced/Hours
= 150/36
= 4.17 parts per hours