A) 6.5 km/hour
B) 5.5 km/hour
C) 6 km/hour
D) 5 km/hour
Correct Answer: B
Solution :
Speed upstream\[=\frac{40}{8}\] \[=5\]kmph Speed downstream\[=\frac{36}{6}\] \[=6\]kmph \[\therefore \]Speed of boat in still water \[=\frac{1}{2}(5+6)=5.5\,\,kmph\]You need to login to perform this action.
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