A) 75 m
B) 125 m
C) 150 m
D) 625 m
Correct Answer: A
Solution :
Let x is the length of fastest train Since, \[\text{time=}\frac{\text{distance}}{\text{speed}}\] \[\therefore \] \[=\frac{15}{3600}=\frac{x}{50-32}\] \[\Rightarrow \] \[x=\frac{15\times 18}{3600}\] \[\Rightarrow \] \[x=\frac{3}{40}\,km=\frac{3}{40}\times 1000=75\,m\]You need to login to perform this action.
You will be redirected in
3 sec