Illustrate what order should these occupation be done

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Q. A machine shop has 2 machines, M1 and M2. Four jobs A, B, C and D desire to be processed during machines M1 first and M2 second. Occupation A will take one hour on machine M1 and 3 hours on machine M2. Occupation B will take 3 hours on M1 and 2 hours on M2. Occupation C, takes seven hours on M1and 3 hours on M2. Occupation D requires 5 hours on M1 and one hour on M2. Using Johnson's rule, illustrate what order should these occupation be done? Select one of the following answers.

Reference no: EM1373853

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