A) 10 s
B) 8 s
C) 12 s
D) 14 s
Correct Answer: A
Solution :
Relative speed\[=45+55=90\,\,\text{km/h}\] \[=90\times \frac{5}{18}=25\,\text{m/s}\] Distance to be covered \[=132+118=250\,m\] \[\therefore \] Time taken to cross each other \[=\frac{250}{25}=10\,s\]You need to login to perform this action.
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