Question

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?

• A. 230 m
• B. 240 m
• C. 260 m
• D. 320 m

Answer 1

Answer:

A. 230 m

Relative speed = (120 + 80) km/hr =200 x5/18 m/sec =500/9 m/sec Let the length of the other train be x metres. [x + 270]/9 =500/9 x + 270 = 500 x = 230.