Chapter 8
76. Ring Company makes telephones. Currently, Ring makes all components of the telephones in-house. An outside
company has offered to supply one component, part number X76, for $12 each. Ring uses 22,000 of these components per
year. Costs of X76 are as follows:
Direct materials $3.00
Direct labor $1.50
Variable overhead $2.75
Fixed overhead $5.00
Suppose that 30% of the fixed overhead is avoidable if part X76 is not made by Ring. Should Ring purchase the part from
the outside supplier?
a. No, income will decrease by $71,500.
b. No, income will decrease by $15,000.
c. Yes, income will increase by $74,500.
d. No, income will decrease by $10,500.
e. Yes, income will increase by $10,500.
77. Cherry Company makes telephones. Currently, Cherry makes all the components of the telephones in-house. An
outside company has offered to supply one component, part number X76, for $15 each. Cherry uses 15,000 of these
components per year. Costs of X76 are as follows:
Direct materials $2.00
Direct labor $2.00
Variable overhead $3.00
Fixed overhead $6.00