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Q: A train 180 m long is running at a speed of 90 km/hr. how long will it take to pass a railway signal?
A. 2 sec B. 7.2 sec
C. 7 sec D. 8 sec

Answer and Explanation

Answer:7.2 sec

Explanation:
Speed = (Distance travelled by train) / Time
180/Time = 90 × 5/18
Time = 36 / 5 = 7 × 1/5 seconds

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