The sum of the speeds of a boat in still water and the speed the current is 10 kmph.
The sum of the speeds of a boat in still water and the speed the current is 10 kmph. If the boat takes 40% of the time to travel downstream when compared to that upstream. Then find the difference of the speeds of the boat when travelling upstream and down stream.
A) 4 kmph
B) 6 kmph
C) 8 kmph
D) 5 kmph
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