Answer the Following Questions Using the Information Below

Multiple Choice

Answer the following questions using the information below:
O'Grady's Cycle Repairs shop has a variable demand.Historically,its demand has ranged from 20 to 25 bicycle repairs per day with an average of 20.Evan,the mechanic,works eight hours a day,five days a week.Each order is one bicycle repair and each bicycle repair takes 20 minutes.
-O'Grady's plans to add skateboards to its product line and anticipates that they will average five skateboard repairs per day.Each skateboard takes 12 minutes to repair.What is the average waiting time,in minutes,if Evan continues to be the only mechanic?

A) 410.0 minutes
B) 112.4 minutes
C) 218.0 minutes
D) 38.0 minutes