# A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?

1
by rohanGrover

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by rohanGrover

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them speed of boat downstream is x+y and upstream is x-y

now

16/x+y=2

x+y=8---------------------------1

and 16/x-y=4

x-y=4-----------------------2

from 1 ad 2

x=6

and y=2

speed of boat in still water is 6km/hr