[1km/hr] A boat takes 6 hours to cover 36 km downstream and 8 hours to cover 32 km upstream. Then the speed o

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A boat takes 6 hours to cover 36 km downstream and 8 hours to cover 32 km upstream. Then the speed of the stream is?

4km/hr

3km/hr

2km/hr

1km/hr

Explanation:

Speed downstream = $\dfrac{Distance}{Time}$=$\dfrac{36}{6}$=6km/hr

Speed upstream = $\dfrac{Distance}{Time}$=$\dfrac{32}{8}$=4km/hr

Speed of stream =$\dfrac{1}{2}\left(Downstream\:Speed-Upstream\:Speed\right)$

Required speed =$\dfrac{1}{2}\left(6-4\right)km/hr$

=$\dfrac{1}{2}\times 2$

=1km/hr

Additional Questions

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