Quantitative Aptitude Ques 435
Question: A train, 240 m long crosses a man walking along the line in opposite direction at the rate of 3 km/h in 10 s. The speed of the train is
Options:
A) 63 km/h
B) 75 km/h
C) 83.4 km/h
D) 69 km/h
Show Answer
Answer:
Correct Answer: C
Solution:
- Let speed of train = x km/h
$ \therefore $ $ (x+3)\times \frac{1000}{3600}=\frac{240}{10} $
$ \Rightarrow , $ $ \frac{(x+3)\times 10}{36}=24 $
$ \Rightarrow $ $ 10,(x+3)=36\times 24 $
$ \Rightarrow $ $ x=83.4,km/h $
BETA
