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USPshnik [31]
3 years ago
7

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 ta

ke both pipes to fill the pool?
Mathematics
1 answer:
Naddika [18.5K]3 years ago
4 0
To do this, you have to make it like this: 



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