Q.
A. 48 km/hr
B. 54 km/hr
C. 66 km/hr
D. 82 km/hr
E. None of the above
Correct choice: D
Explanation:
Let the speed of the second train be x km/hr.
Distance covered = (108 + 112) = 220 m.
250 + 5x = 660
x = 82 km/hr.