1.

A man can row 8 Kmph in still water. If the velocity of the current is 2 Kmph and it takes him 2 hours to row to a place and come back. How far is the place?

Answer»

7.5 km



Man's rate down stream = 8 + 2 = 10 kmph 

Man's rate upstream = 8 - 2 = 6 kmph 

Let the REQUIRED DISTANCE be X km 

Then X/10 + X/6 = 2 

3X + 5X = 60 

8X = 60 

X = 7.5 km



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