Question:
A boat covers a distance of 24km upstream in 3h . If the stream flows at 4km/h ,find the speed of rhe boat in still water
Answer:
Let the speed of the boat in still water = u km/hr
Given, speed of the stream = 4 km/hr
Now, upstream = u - 4 km
We know that,
Distance = speed * time
=> 24 = (u - 4) * 3
=> u - 4 = 24/3
=> u - 4 = 8
=> u = 8 + 4
=> u = 12 km/hr
So, the speed of the boat in still water is 12 km/hr
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