1.

A ship60 km from the shore spring a leak which admits 3(3)/(4) tonnes of water in 15 min. 25 tonnes of water would suffer to sink her, but the pumps can thrown out 12(1)/(2) tonnes of water an hour. Find the average rate of sailing that the she may just reach the shore as she begins to sink.

Answer»


ANSWER :6 km/h


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