Question 965728
Work rates are in HOLES per MINUTES.


PERSON_________________RATE
Bob____________________{{{3/x}}}
June___________________{{{1/x}}}
Roger__________________{{{1/(x+8)}}}
All Three______________{{{1/12}}}


Be sure you understand that first.





When you know how all that data works, then solve for x in the rate sum equation:

{{{highlight_green(3/x+1/x+1/(x+8)=1/12)}}}