posted by Fabian on .
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?
number of days = 20 hrs / (k/5 hrs/day)
= 20(5/k) days
= 100/k days
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!!!!