Discussion :: Boats and Streams

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
Answer : Option C
Explanation :
Speed downstream = (13 + 4) km/hr = 17 km/hr.
Time taken to travel 68 km downstream =\([\frac { 68 } {17 }]\)hrs = 4 hrs. 
Be The First To Comment