Question: Ashutosh can row 24 km/h in still water. It takes him twice as long to row up as to row down the river. Find the rate of stream.
Options:
A) 4 km/h
B) 18 km/h
C) 8 km/h
D) 15 km/h
Show Answer
Answer:
Correct Answer: C
Solution:
- Let rate of stream be a km/h.
According to the question,
$ 24+a=2(24-a) $
$ \Rightarrow $ $ 24+a=48-2a $
$ \Rightarrow $ $ 3a=48-24=24 $
$ \therefore $ $ a=\frac{24}{3}=8km/h $