Quantitative Aptitude Ques 12

Question: If I walk at 5 km/h, I miss a train by 7 min. If however, I walk at 6 km/h, I reach the station 5 min before the departure of the train. The distance (in km) between my house and the station is

Options:

A) 6

B) 5

C) 4

D) 3

Show Answer

Answer:

Correct Answer: A

Solution:

  • If the required distance be x km. Then, according to the question, $ \frac{x}{5}-\frac{x}{6}=\frac{12}{60} $
    $ \Rightarrow $ $ \frac{6x-5x}{30}=\frac{1}{5} $

$ \Rightarrow $ $ \frac{x}{30}=\frac{1}{5} $
$ \Rightarrow $ $ x=6,km $