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Jobs A(2,5),B(4,1),C(3,3) need X then Y (hours). Each machine does 1 job at a time; no splitting. Use the same order on both machines. Fastest order?

AABC
BCAB
CACB
DBAC
Answer & Solution
Correct answer: C. ACB
ACB finishes at11h, earlier than the other five feasible orders.
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