A train 120 m long passes a bridge in 18 seconds moving at a speed of 60 km/h. Find out the length of the bridge.

Question

Question

This question was previously asked in

SSC GD Constable (2022) Official Paper (Held On : 10 Jan 2023 Shift 2)

Answer 1

Given:

Length of the train = 120 m

Speed of the train = 60 km/h

Time taken to cross the bridge = 18 seconds

Formula used:

Speed = Distance/Time

Solution:

Let the length of the bridge be x.

Speed = 60 km/h = 60 × 5/18 m/s

Time = 18 s

Distance = Speed × Time = 60 × 5/18 × 18 s = 300 m

300 m = 120 m + x

x = 300 m - 120 m

x = 180 m

Therefore, the length of the bridge is 180 m.

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