InterviewSolution
Saved Bookmarks
| 1. |
A 120 m long train is moving in a direction with a speed of 20ms^(-1). Another train (130m long) moving with 30ms^(-1) in the opposite directon crosses the first train in a time |
|
Answer» 36 s = `(120+130)/(20+30)` `=(250)/(50)` =5 sec |
|