Boats & Streams · Question 17 · Easy
Mohan rows at 7.5 km/h in still water and the river flows at 1.5 km/h. How long will he take to row 27 km downstream?
- 4 1/2 hours
- 3 hours
- 4 hours
- 3 1/2 hours
Answer and explanation
Answer: B. 3 hours
Explanation: Downstream speed = 7.5 + 1.5 = 9 km/h. Time = 27 ÷ 9 = 3 hours.
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