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? Select the correct option:  A) 230 m  B) 245 m  C) 260 m  D) 275 m  E) 295 m
Relative speed = (120 + 80) km/hr   = 200 x 5/18   = 500/9 m/sec   Then, (x+270)/9 = 500/9   --&gt; x + 270 = 500   --&gt; x = 230.   230 mnswer : 230 m.
<result>A</result>
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?