Question:
One pipe fills a storage pool in 20 hours. A second pipe
Last updated: 7/15/2022
![One pipe fills a storage pool in 20 hours. A second pipe](https://media.kunduz.com/media/sug-question/raw/59378594-1657880637.98583.jpeg?h=512)
One pipe fills a storage pool in 20 hours. A second pipe fills the same pool in 10 hours. When a third pipe is added and all three are used to fill the pool, it takes only 5 hours. Find how long it takes the third pipe to do the job.