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31 May, 14:39

Working alone ryan can dig a 10ft by 10ft hole in five hours. castel can dig the same hole in six hours how long would it take them to dig the hole if they worked together

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  1. 31 May, 18:02
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    Ryan rate = 1/5 job/hr

    Castel rate = 1/6 job/hr

    Together rate = 1/x job/hr

    Equation:

    1/5 + 1/6 = 1/x

    6x + 5x = 30

    11x = 30

    x = 2 8/11 hr = 2 hr (8/11) 60 = 2hr 47 minutes (time to do the job together)
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