Swimming pool water?

A swimming pool can be filled in 15 hours if water enters through a pipe alone, or in 22 hours if water enters?

  • a swimming pool can be filled in 15 hours if water enters through a pipe alone, or in 22 hours if water enters through a hose alone. If water is entering through both the pipe and the ...show more

  • Answer:

    Together in 1 hour = 1/15 + 1/22 = 37/ 330 Together they will fill in 330/37 hours So 4/5 will take 4/5 X 330/37 = 1320/ 185 = 7.135 hours OR 7 hours 8.11 minutes ANSWER

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