Question:
The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds is :
A200
B225
C245
D250
Answer:
C. 245
Explanation:
Speed =45x5/18=25/2 m/s Let the length of bridge be x metres. (10+x)/30=25/2 2(130 + x) = 750 x = 245 m.