SOLUTION: if bob takes 3 times as long as june to dig a hole and roger needs 8 more minutes than june and with all helping it takes 12 minutes. how long for each?

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Question 965728: if bob takes 3 times as long as june to dig a hole and roger needs 8 more minutes than june and with all helping it takes 12 minutes. how long for each?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Work rates are in HOLES per MINUTES.

PERSON_________________RATE
Bob____________________3%2Fx
June___________________1%2Fx
Roger__________________1%2F%28x%2B8%29
All Three______________1%2F12

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%283%2Fx%2B1%2Fx%2B1%2F%28x%2B8%29=1%2F12%29