# Speed of a boat is 5km/h in still water and speed of the stream is 3km/h. If the boat take 3hrs to go to a place and come back,the distance of the place is:

2
by annumalekar

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by annumalekar

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CASE 1

while going to a place (upstream)

distance = x km

speed =( 5-3) km/hr

=2 km/hr

time = hr -------------------> (1)

CASE 2

while coming back (downstream)

distance = x km

speed = (3+2) km/hr

=5 km/hr

time = km/hr-------------- > (2)

From (1) and (2)

speed of steam=3km/h

time takes to row to one place to other=3hours

time taken in up stream=

time taken in downstream =

total time =