Two trains of lengths 120 m and 130 m run in opposite directions at 60 km/h and 40 km/h. In how many seconds will they cross each other? (answer in seconds)

Question

Accepted Answer

9. Relative speed = 60 + 40 = 100 km/h = 250/9 m/s. Total length = 250 m. Time = 250 ÷ (250/9) = 9 seconds.

Two trains of lengths 120 m and 130 m run in opposite directions at 60 km/h and 40 km/h. In how many seconds will they cross each other? (answer in seconds)

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