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A ship 55 km from the shore springs a le...

A ship 55 km from the shore springs a leak which admits 2 tonnes of water in 6 min . 80 tonnes of water would suffer to sink it, but the pumps can throw out 12 tonnes of water an hour. Find the average rate of sailing that it may just reach the shore as it begins to sink

A

5.5 km/h

B

6.5 km/h

C

7.5 km/h

D

8.5 km/h

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The correct Answer is:
A
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