It takes Spot 2 hours to paint a fence and Steven 4 hours to paint the same fence. If they work toge

Discussion in 'Calculator Requests' started by math_celebrity, Feb 7, 2023.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    It takes Spot 2 hours to paint a fence and Steven 4 hours to paint the same fence. If they work together, how long will it take them to paint the fence?

    Spot paints 1/2 of a fence in an hour
    Steven paints 1/4 of a fence in an hour
    Together, in an hour, they paint 1/2 + 1/4 of a fence in an hour
    1/2 = 2/4, so we have 2/4 + 1/4 = 3/4 of a fence in an hour

    Meaning they take another 20 minutes to pain the last 1/4 of the fence

    1 hour + 20 minutes is the total time it takes
     

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