A) 5 s
B) 10 s
C) 20 s
D) 25 s
Correct Answer: C
Solution :
Ans. Required time taken by the train \[\text{=}\frac{\text{Total}\,\text{distance}\,\text{covered}\,\text{by}\,\text{train}}{\text{Speed}\,\text{of}\,\text{train}}\] \[=\frac{(300+200)}{25}=\frac{500}{25}=20\,s\]
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