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Mathematics, 07.11.2019 04:31 mirmir62
Three water pipes are used to fill a swimming pool. the 1st pipe alone takes 8 hours to fill the pool, the 2nd pipe alone takes 12 hours to fill the pool, and the 3rd pipe takes 24 hours to fill the pool. if all 3 pipes are opened at the same time, how long will it take all 3 together to fill the pool?
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