A man can row 24km/hr in still water. It takes twice as long to travel any distance upstream as compared to the same distance downstream. Find the speed of the stream?
A12
B10
C8
D6
Answer:
C. 8
Read Explanation:
Since it takes twice as long in upstream,
Net Speed in upstream = x
Net Speed in Downstream = 2x
Let the speed of stream be y
24 - y = x
24 +y = 2x
24 + y = 2( 24 - y)
24 + y = 48 - 2y
3y = 24
y = 8
Speed of stream = 8 kmph.