A) 125 m
B) 135 m
C) 150 m
D) 175 m
Correct Answer: C
Solution :
[c] Let the length of the train be x m. Then, \[\frac{x}{15}=\frac{(100+x)}{25}\] \[\Rightarrow \] \[25x=1500+15x\] \[\Rightarrow \] \[10x=1500\] \[\Rightarrow \] \[x=150\] Hence, the length of the train is \[150\,m.\] |
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