1.

Two trains 140 m and 160 m long run at the speed fo 60 k/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. 7 sec
B. 8.6 sec
C. 10.8 sec
D. 11 sec
Answer» D. 11 sec


Discussion

No Comment Found