A train 200m long passes a 300m long tunnel in 25 seconds. Find the speed of the train in km/h.

Topic: Speed, Time &amp; Distance
Subtopic: Trains

A50 km/h

B60 km/h

C72 km/h

D80 km/h

Explanation

Total distance = 200 + 300 = 500m. Speed (m/s) = 500 / 25 = 20 m/s. Speed (km/h) = 20 * 18/5 = 72 km/h.

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