Two trains 140 m and 160 m long run at ...

[ Aptitude : Problems on Trains ]

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is:
A. 9
B. 9.6
C. 10
D. 10.8

Select your answer:
A B C D E

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