72) Glenelg Motorcycles Company makes small motorcycles. The monthly demand ranges
from 80 to 100 motorcycles. The average demand is 92 motorcycles. The plant operates 300
hours a month. Each cycle takes approximately 1.5 hours.
If the company adds a new line of scooters, initial demand will be 20 per month. Each
scooter will take 1 hour to make. To offset approaching production capacity, expanding the
assembly line is possible. This will decrease manufacturing time for all products by 20%.
However, this will increase the costs of cycles from $400 to $500 and scooters from $200 to
$240. The change will also cause increases in prices from $700 to $750 for cycles and from
$450 to $500 for scooters.
a. What is the average waiting time for cycles if they are the only item manufactured?
b. What are the average waiting times if both cycles and scooters are produced and the
assembly line is not enlarged?
c. What are the average waiting times if both cycles and scooters are produced and the
assembly line is enlarged?
d. What is the expected monthly margin without scooters if the company sells all 92
cycles it manufactures?
e. What are the expected monthly contribution margins if scooters are made with the
current assembly line and with the new assembly line? Assume average sales and that
sales equal production.
f. What action do you recommend?