A boat goes 12 km downstream in 2 hours and 8 km upstream in 2 hours. What is the speed of the current?

A1 km/h

B2 km/h

C3 km/h

D4 km/h

Explanation

Downstream = 12/2=6. Upstream = 8/2=4. Current = (6-4)/2 = 1 km/h.

Exam Relevance

Topic: Speed, Time & Distance
Subtopic: Boats and Streams

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