other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Speed Time and Distance Relative Speed
Two trains of equal length are running on parallel lines in the same direction at the rate of 45 km/hr and 35 km/hr. The faster train passes the slower train in 54 seconds. The length of each train is
1
75 m
2
72 m
3
80 m
4
82 m