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trains having length of 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 which they take to cross each other, is | |
A. | 10.8 s [Correct Answer] |
B. | 12 s [Wrong Answer] |
C. | 9.8 s [Wrong Answer] |
D. | 8 s [Wrong Answer] |