Two trains of length 100 meters and 200 meters are 660 meters apart.
Two trains of length 100 meters and 200 meters are 660 meters apart. They are moving towards each other on parallel tracks, at speeds of 90 km/h and 108 km/h. After how many seconds will the trains meet?
Answer/Solution
12
Steps/Work
The speeds are 90000/3600 = 25 m/s and 108000/3600 = 30 m/s
The relative speed is 55 m/s.
time = 660 / 55 = 12 seconds
The answer is A.
The relative speed is 55 m/s.
time = 660 / 55 = 12 seconds
The answer is A.