Two trains 200m and 114m long are running in opposite directions one at the rate of 30km h and other...........

Quantitative Aptitude (CDS) Problems on trains

Two trains 200m and 114m long are running in opposite directions, one at the rate of 30km/h and other at 40 km/h. From the moment they meet will cross each other in?

14.14 sec

60 sec

15 sec

16.14 sec

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Explanation:

opposite direction speed will be v1+v2
time=distance/time
v=30+40
=70 km/h
=70(1000/3600)m/s
=350/18 m/s
time to cross each other is=200+114 /(350/18)
=(314)(18)/350
=16.14 second