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A student is awake k hours each day and spend k/5 hours each day doing homework. In terms of k, how many days will it take the student to complete homework assignments that require a total of 20 hours?

  • math -

    number of days = 20 hrs / (k/5 hrs/day)
    = 20(5/k) days
    = 100/k days


    testing:
    suppose k = 10
    is my answer reasonable?
    Student would spend 10 hrs a day awake, ok
    student would spend 2 hrs a day doing hmwk, ok
    so to do a 20 hrs assignment should take 10 days
    my formula 100/10 = 10 , ok!!!!

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