1. A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?

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By: guest on 01 Jun 2017 05.48 pm

Relative speed = (120 + 80) km/hr = 200 x 5 m/sec 18 = 500 m/sec. 9 Let the length of the other train be x metres. Then, x + 270 = 500 9 9 x + 270 = 500 x = 230.