## (Solution Download) During the campus Spring Fling, the bumper car amusement attraction has a problem of cars becoming d

During the campus Spring Fling, the bumper car amusement

attraction has a problem of cars becoming disabled and in need of

repair. Repair personnel can be hired at the rate of \$15 per hour,

but they only work as one team. Thus, if one person is hired, he or

she works alone; two or three people work together on the same

repair.

One repairer can fix cars in an

average time of 30 minutes. Two repairers take 20 minutes, and

three take 15 minutes. While these cars are down, lost income is

\$30 per hour. Cars tend to break down at the rate of 1.40 per

hour.

Management is trying to decide how

many repair persons to hire, and has asked you for cost data.

 a. What is the total hourly cost with one repair person? (Round your intermediate calculations and final answer to 2 decimal places.)

 Total cost per hour \$     (I somehow got \$85, which was correct)

 b. What is the total hourly cost with two repair persons? (Round your intermediate calculations and final answer to 2 decimal places.)

 Total cost per hour \$

 c. What is the total hourly cost with three repair persons? (Round your intermediate calculations and final answer to 2 decimal places.)

 Total cost per hour \$

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