   # What is the time taken by the slower train to cross the faster train in seconds ?

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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.
What is the time taken by the slower train to cross the faster train in seconds ? posted Dec 24, 2015

Total speed= 60+90=150
Speed=150*5/18=250/6
Total distance= 1.1+0.9= 2000 m
Time= distance/speed
= 2000*6/250= 48 sec
As time to cross slow train or fast train will be same as both trains are moving answer Dec 24, 2015

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