Question
In a river, a man takes 3 hours in rowing 3 km upstream or 15 km downstream. What is the speed of the current?
Answer: Option A
SPEED UPSTREAM = 3/3 KM/HR =1 KM/HR
SPEED DOWNSTREAM = 15/3 KM/HR = 5 KM/HR
SPEED OF CURRENT = ½(5 -1) KM/HR = 2 KM/HR
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SPEED UPSTREAM = 3/3 KM/HR =1 KM/HR
SPEED DOWNSTREAM = 15/3 KM/HR = 5 KM/HR
SPEED OF CURRENT = ½(5 -1) KM/HR = 2 KM/HR
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