Question

. A race-boat covers a distance of 60 km downstream in one and a half hour. It covers this distance
upstream in 2 hours. The speed of the race-boat in still water is 35 km/hr. Find the speed of the
stream.
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Answer 1

Step-by-step explanation:

speed of the boat downstream = speed of the boat in still water + speed of the stream

speed = distance/ time

speed of the boat downstream= 60/1.5= 40km/hr

speed of the boat downstream = speed of the boat in still water+ speed of the stream

40 = 35+ speed of the stream

speed of the stream = 40-35 = 5km/hr

speed of the stream = 5km/hr