Posted by **Fabian** on Monday, January 23, 2012 at 8:07pm.

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 -
**Reiny**, Monday, January 23, 2012 at 9:42pm
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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