Question

a train of length 270 m running at a speed of 120 km/h ,if the train passes a another train of speed 80 km/h opposite to the direction of first train in 9 sec find the length of the another train A230 m B 240m C260m D none of these

Answer 1

A. 230m of opposite train

Answer 2

Answer:230

Step-by-step explanation:

Relative speed = (120 + 80) km/hr

  =200 x(5/18)m/sec

  =500/9    m/sec.

Let the length of the other train be x metres.

Then,(x + 270)/9=500/9

x + 270 = 500

x = 230