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Five men are available to do five different jobs. From past records, the time (in hours) that each man takes to do each job is known and is given in the following table :

Find out the minimum time required to complete all the jobs.

1. $5$
2. $11$
3. $13$
4. $15$

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ans is C 13

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Sir plz explain...
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which method sir???
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its hungarian method for assignment , for complete algorithm u may refer any std book or

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The fourth row " 2 0 5 " also has a single zero. Then why not the second column is crossed ?
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4th row initially 2 0 5 0 0  and finally  0 0 3  0 0  contains lots of zero