Question
A boat takes 3 hours to travel 24 km downstream and 4
hours to travel 16 km upstream. What is the speed of the current?Solution
Speed downstream = Distance/Time = 24/3 = 8 km/hr Speed upstream = Distance/Time = 16/4 = 4 km/hr Speed of current = (Downstream speed - Upstream speed) / 2 = (8 - 4) / 2 = 4/2 = 2 km/hr. Correct Option: c) 2 km/hr
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