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Chapter: Assignment Problem and Sequencing· Mathematics & Statistics (Commerce) Part 2

The time required for printing of four books A, B, C and D is 5, 8, 10 and 7 hours. While its data entry requires 7, 4, 3 and 6 hours respectively. The sequence that minimizes total elapsed time is ____.

Q.4 (C) (ii) The time required for printing of four books A, B, C and D is 5, 8, 10 and 7 hours. While its data entry requires 7, 4, 3 and 6 hours respectively. The sequence that minimizes total elapsed time is ____.

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Answer: A - D - B - C

Taking printing as the first machine and data entry as the second: the smallest time is 3 (C, data entry), so C goes last; next 4 (B, data entry), so B is second last; next 5 (A, printing), so A goes first; D takes the remaining place. Sequence: A, D, B, C.

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