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9 August, 21:14

If 5 men take 3 hours to dig 3 holes how long will it take for two men to dig half a hole

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  1. 9 August, 22:37
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    This belongs in the mathmatics catagory, but:

    5 men do 3 units of work in 3 hrs.

    5 men do 1 unit of work in 1 hr.

    1 man does 1/5 unit of work in 1 hr.

    2 men do 2/5 units of work in 1 hr.

    Therefore 2 men will take 5/2 hours to dig 1 hole and take 5/4 hrs to dig half a hole.

    So the answer you're looking for is 1 hr 15 mins
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