A man rows at 5 km/h in still water and at 3.5 km/h against the current. Find his rate along (with) the current.
Aptitude
Boats and Streams
Difficulty: Easy
Choose an option
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A8.5 km/hr
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B6.5 km/hr
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C6 km/hr
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D4.25 km/hr
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E—
Answer
Correct Answer: 6.5 km/hr
Explanation
Solution:Against: b − s = 3.5 with b = 5 ⇒ s = 1.5. Thus with current: b + s = 5 + 1.5 = 6.5 km/hr.