Boats & Streams · Question 6 · Medium
Boats & Streams question 6
A motorboat with speed 12 km/h in still water goes 48 km downstream and comes back. If the stream flows at 4 km/h, what is the total time taken?
- 9 hours
- 8 hours
- 6 hours
- 10 hours
Answer and explanation
Answer: A. 9 hours
Explanation: Downstream speed = 16 km/h, upstream speed = 8 km/h. Time = 48/16 + 48/8 = 3 + 6 = 9 hours.
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