Quantitative Aptitude Ques 2052

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 $