1.

 A boat running downstream covers a distance of 30km in 2hours. While coming back the boat takes 6 hours to cover the same distance. If the speed of the current is half that of the boat, what is the sp

A. 15 Km/hr
B. 5 Km/hr
C. 10 Km/hr
D. 20 Km/hr
Answer» D. 20 Km/hr


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