Two trains are moving in opposite directions @ 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is:
Correct Answer: 48
Explanation:
Relative speed = (60+ 90) km/hr
=
❨
150 x
5
❩m/sec
18
=
❨
125
❩m/sec.
3
Distance covered = (1.10 + 0.9) km = 2 km = 2000 m.
