A) 360 m
B) 260 m
C) 300 m
D) Cannot be determined
Correct Answer: A
Solution :
[a] Let length of stationary train \[B=x\,m\] \[\therefore \] \[\frac{240+x}{50}=\frac{240}{20}\] \[\Rightarrow \] \[x=600-240=360\,\,m\] |
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