Quantitative Aptitude Ques 316
Question: Train A crosses a stationary train B in 50 s and a pole in 20 s with the same speed. The length of the train A is 240 m. What is the length of the stationary train B?
Options:
A) 360 m
B) 260 m
C) 300 m
D) Cannot be determined
E) None of the above
Show Answer
Answer:
Correct Answer: A
Solution:
- If the length of train B is x m, then speed of train
$ \Rightarrow $ $ \frac{240+x}{50}=\frac{240}{20} $
$ \Rightarrow $ $ \frac{240+x}{50}=12 $
$ \Rightarrow $ $ 240+x=600 $
$ \Rightarrow $ $ x=600-240 $
$ \therefore $ $ x=360,m $
BETA
