The maintenance crew of a company is divided in two groups, C1 and C2, which cares for the maintenance of the machines. Crew C1 is responsible for replacement of parts which are worn out while crew C2 oils and resets the machines back for operation. The times required by crews C1 and C2 on different machines which need working on them as given as follows:

In what order should the machines be handled by crews C1 and C2 so that the total time taken is minimised?

Transcribed Image Text:

Machine Crew C Maintenance Time (Hrs) Crew C M 8 5 M2 6 3 M3 10 7 MA 11 12 M5 10 8 M6 14 6 M1 4 7