Question

An automobile maker has an order for 7,500 new cars to be delivered in one week. Each car must be fitted with a new hood ornament that requires 1 hour and 15 minutes to install. Assuming the factory operates on a standard workweek shift (8 hours per day for 5 days), how many workers must be assigned this job to meet the deadline?

Answer 1

7500 cars
a worker works 5*8=40 hours per week
1 week of time
each modification takes one worker 1h 15m=1,25h=(5/4)h

calculate how many modifications one worker can make in the 40 hours/one week
40/(5/4)=160/5 =32

calculate the necessary amount of workers
7500/32=234,375
->round up, because we can't assign parts of workers-> 235 workers are necessary to meet the deadline