Question

you report to your supervisor the average length of chain produced per operating hour each week. the equipment operates 5 days a week for 12 hours each day. according to last weeks production numbers shown in the table, how many feet of chain were produced per operating hour?
day monday tuesday wednesday thursday friday
feet of chain 862 905 792 825 816
35
60
70
350
840

Explanation:

Step1: Calculate total feet of chain produced

Add up the feet of chain produced each day: $862 + 905+792 + 825+816=4200$ feet.

Step2: Calculate total operating hours

The equipment operates 5 days a week and 12 hours a day, so total operating hours are $5\times12 = 60$ hours.

Step3: Calculate feet of chain per operating hour

Divide the total feet of chain by total operating hours: $\frac{4200}{60}=70$ feet per operating hour.

Answer:

70