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22 July, 13:18

Shamus can paint the barn in 6 hours, and ishmael can paint the barn in 7 hours. how long will it take them to paint the barn together?

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  1. 22 July, 13:38
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    Given that Shamus can paint the barn in 6 hours, the portion of barn he can complete in 1 hour will be 1/6

    If Ishmael can paint the ban in 7 hours, the portion he can paint is 1/7

    when working together the portion they can complete will be:

    1/7+1/6

    =13/42

    time taken for them to complete the barn will be:

    42/13

    =3 3/13 hours

    the answer is 3 3/13 hours
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