Relevant Competitive Tests:
A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?
A. 8 kmph
B. 4 kmphCorrect Answer
C. 2 kmph
D. 10 kmph
Correct Option: B. 4 kmph
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