The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:

Q: The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:

Given Train length = 130 m Speed = 45 km/h Total crossing time = 30 s Compute Speed = 45 × (5/18) = 12.5 m/sTotal distance = 12.5 × 30 = 375 m = train + bridgeBridge = 375 − 130 = 245 m

Difficulty: Easy

200 m
245 m
250 m
230 m

Correct Answer: 245 m

Explanation:

Given

Train length = 130 m
Speed = 45 km/h
Total crossing time = 30 s

Compute
Speed = 45 × (5/18) = 12.5 m/sTotal distance = 12.5 × 30 = 375 m = train + bridgeBridge = 375 − 130 = 245 m

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