Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

[A].	16 hours
[B].	18 hours
[C].	20 hours
[D].	24 hours

Answer: Option D

Explanation:

Speed upstream = 7.5 kmph.

Speed downstream = 10.5 kmph.

Total time taken =		105	+	105	hours = 24 hours.
		7.5		10.5

Aptitude :: Boats and Streams : More Exercises

Boats and Streams - General Questions

Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

Aptitude :: Boats and Streams : More Exercises

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