IT Placement Practice Test 1

Since both trains are moving in opposite direction so their speed must be added. As we know, speed =

distance

time

(where distance will be the train of the length)
Time taken by man sitting in second train to pass the first train
=

200

(60+100)× 5 18

= 4.5 s
Note : To convert km/hr to m/s we have to multiply it by 5/18