A) 24 km/h
B) 36 km/h
C) 40 km/h
D) 45 km/h
Correct Answer: D
Solution :
Suppose length of train \[=x\,m\] According to question, \[\frac{x+50}{14}=\frac{x}{10}\] Or, \[x=\frac{500}{4}=125\,m\] Therefore, speed\[=\frac{125}{10}\times \frac{18}{5}=45\,\text{km/h}\]You need to login to perform this action.
You will be redirected in
3 sec