A boat can travel with a speed of 13km/hr in still water.If the speed of the stream is 4km/hr,find the time taken by the boat to go to downstream.

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Solution

Speed down stream $= (13 + 4)$ km/hr $= 17$ km/hr
Time taken to travel $6$ round own stream $= \frac{68}{17} = 4$ hrs.

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A boat can travel with a speed of 13km/hr in still water.If the speed of the stream is 4km/hr,find the time taken by the boat to go to downstream.

Speed down stream =(13+4) km/hr =17 km/hrTime taken to travel 6 round own stream =6817=4 hrs.

Speed down stream $= (13 + 4)$ km/hr $= 17$ km/hr
Time taken to travel $6$ round own stream $= \frac{68}{17} = 4$ hrs.