A man rows downstream at 14 km/h and upstream at 9 km/h. Find his rate in still water.
Aptitude
Boats and Streams
Difficulty: Easy
Choose an option
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A5 km/hr
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B23 km/hr
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C11.5 km/hr
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DNone of these of these
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E—
Answer
Correct Answer: 11.5 km/hr
Explanation
Solution:b = (down + up)/2 = (14 + 9)/2 = 11.5 km/hr.