Home / Arithmetic Aptitude / Problems on Trains :: Discussion

### Discussion :: Problems on Trains

1. Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is:

2.  A. 50 m B. 72 m C. 80 m D. 82 m

Answer : Option A

Explanation :

Let the length of each train be x metres.

Then, distance covered = 2x metres.

Relative speed = (46 - 36) km/hr

 = $$[10 *\frac { 5 } { 18} ]$$ m/sec
 = $$[\frac { 25 } {9 } ]$$ m/sec
 $$\frac { 2X } { 36 }$$=$$\frac { 25 } {9 }$$

2x = 100

x = 50.

Be The First To Comment