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Question

The speed of the stream is 12 km/h. Boat ‘A’ covers 100 km distance against the stream in 5 hours and boat ‘B’ covers 80 km distance against the stream in 2 hours. The speed of boat ‘B’ in still water is how much percent of the speed of boat ‘A’ in still water?

A 162.5%

B 102.5%

C 152.5%

D 172.5%

E None of these

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