Mathematics, 20.10.2020 21:01 playaajosh
My new hose can fill up my daughters' swimming pool in 10 min. The old hose used to take 15 min. How long will it take to fill up with both hoses working at the same time?
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My new hose can fill up my daughters' swimming pool in 10 min. The old hose used to take 15 min. How...
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