A train 120 meters long is running at a rate of 54 km/hr.

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A train 120 meters long is running at a rate of 54 km/hr. Time taken by the train to cross a tunnel 130 meters long is ?

1. 8¹/₃ seconds
2. 16²/₃ seconds
3. 10 seconds
4. 15 seconds

Correct Option: B

∵ Speed of the train = 54 x (5/18) m/sec = 15 m/sec

∴ Time taken by the train to cross the tunnel
= Time taken by it to cover (120 + 130) m
= (250/15) sec
= 16²/₃