SOLUTION: If Keegan does a job in 9 hours and with the help of Caitlyn they can do it together in 6 hours, how long would it take Caitlyn to do it alone?

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Question 1187185: If Keegan does a job in 9 hours and with the help of Caitlyn they can do it together in 6 hours, how long would it take Caitlyn to do it alone?
Found 3 solutions by Alan3354, josgarithmetic, ikleyn:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Depends on the job, right?
What are they wearing?
Answer by josgarithmetic(39630)   (Show Source): You can put this solution on YOUR website!
using c for the time for Caitlyn to do the job alone.
SOLVE FOR c.
Answer by ikleyn(52878)   (Show Source): You can put this solution on YOUR website!
.

Working with Caitlyn 6 hours, Keegan, OBVIOUSLY, makes   =   of the job.


It means, that during 6 hours Caitlyn makes remaining    of the job.


Then it is clear that Caitlyn needs 6*3 = 18 hours to make the entire job alone.

Solved.



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