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Mathematics, 09.12.2019 04:31 likevlad2014

it takes 2 hours for faucet a to fill a tank, and it takes faucet b 4 hours. how many hours will it take the two faucets to fill the tank together?

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it takes 2 hours for faucet a to fill a tank, and it takes faucet b 4 hours. how many hours will it...
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