The length of Lucknow mail is 120 m and that of Punjab mail is 80. These two trains are running in the same direction with velocities of 40 km/h and 50 km/h respectively. The time taken by them to cross each other is:

1)8 s

2)72 s

3)11.5 s

4)12.5 s


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    8 s

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  • Exam: Time Speed and distance QUESTIONS





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