SOLUTION: a pool can be filled by one particular pipe in 10 hours, whereas a different pipe requires 6 hours to fill the pool. how long would it take to fill the pool with both pipes?

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Question 251699: a pool can be filled by one particular pipe in 10 hours, whereas a different pipe requires 6 hours to fill the pool. how long would it take to fill the pool with both pipes?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
First, find the hourly rate of each pipe.
The first pipe can fill the pool in 10 hours, so it can fill 1%2F10 of the pool in 1 hour.
The second pipe can fill the pool in 6 hours, so it can fill 1%2F6 of the pool in 1 hour.
Together, both pipes can fill 1%2F10%2B1%2F6+=+4%2F15 of the pool in 1 hour.
Therefore, it will take 15%2F4+=+highlight%283.75%29 hours for both pipes to fill the pool.