These are sample practice MCQs created for exam preparation. These are NOT official exam questions.
Two trains, 200 meters and 150 meters long, are moving toward each other at speeds of 72 km/h and 90 km/h respectively. How long will it take for them to completely cross each other?
Question:
Two trains, 200 meters and 150 meters long, are moving toward each other at speeds of 72 km/h and 90 km/h respectively. How long will it take for them to completely cross each other?
Two trains, 200 meters and 150 meters long, are moving toward each other at speeds of 72 km/h and 90 km/h respectively. How long will it take for them to completely cross each other?
Options
Answer: (C) 7.78 seconds
Explanation:
Total distance to cover = 200 + 150 = 350 meters. Relative speed = 72 + 90 = 162 km/h = 162 × (5/18) = 45 m/s. Time = 350/45 = 70/9 ≈ 7.78 seconds.
Explanation:
Total distance to cover = 200 + 150 = 350 meters. Relative speed = 72 + 90 = 162 km/h = 162 × (5/18) = 45 m/s. Time = 350/45 = 70/9 ≈ 7.78 seconds.
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