joe and Eric have to ship 75 packages. Joe can do the job alone in 5 hours. if Eric helps, they get it done in 4 hours. How long would it ta

Question

joe and Eric have to ship 75 packages. Joe can do the job alone in 5 hours. if Eric helps, they get it done in 4 hours. How long would it take Eric to do the job alone?​

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Sadie 1 month 2021-10-20T21:52:39+00:00 1 Answer 0 views 0

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    2021-10-20T21:54:05+00:00

    Eric took 20 hours to do the job alone.

    Step-by-step explanation:

    Given :

    • Total work = 75 packages
    • Joe took 5 hours to complete the total work.

    The amount of work Joe alone can do per hour = 75/5 = 15 packages.

    The amount of work Joe and Eric together do per hour = 75/4 = 18.75

    The amount of work Eric alone can do per hour = 18.75 – 15 = 3.75

    The time Eric took to complete the entire work = 75 / 3.75 = 20 hours.

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