The speed of a boat in still water is 10 km/hr. If the boat goes 37.5 km up stream in 10 hours, find the speed of the stream.

Asked by Topperlearning User | 7th Jan, 2015, 01:02: PM

Expert Answer:

Speed of boa in still water = 10km/hr

Let the speed of stream = x km/hr

Speed of boat up-stream = (10 - x) km/hr

Distance = 37.5 km, Time = 10 hrs

According to given condition, we have

 

 

 

 

 

 

Hence, speed of stream = 6.25 km/hr

Answered by  | 7th Jan, 2015, 03:02: PM