then time required by 45 such pumps to empty the same reservoir is ______ hours.

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25. If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours.
05
Aug
25. If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours. 25. If 12 pumps can empty a reservoir in 20 hours then time required by 45 such pumps to empty the same reservoir is ______ hours. August 5, 2021 [...]
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