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An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill a pool in 2 hours. How long will it take both pipes to fill the pool?

An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill a pool in 2 hours. How long will it take both pipes to fill the pool?
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5 votes
An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill a pool in 2 hours. How long will it take both pipes to fill the pool?

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User Uflex
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9.0k points

1 Answer

6 votes
To do this, you have to make it like this:



answered
User Ehed
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8.2k points
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