Answer: Marathon should repair the units since an income of $12000 will be gotten.
Step-by-step explanation:
Based on the information given, the following can be deduced:
Revenue when repaired = 10000 × $5 = $50000
Revenue if sold without repair = 10000 × $2 = $20000
Incremental revenue = $50000 - $20000 = $30000
Cost to repair = $18000
Incremental be Income = $30000 - $18000 = $12000
Therefore, Marathon should repair the units since an income of $12000 will be gotten.