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A 500 m train overtakes a man walking along the track in its direction at 4 km/h in 30 seconds. What is the speed of the train?

Competition practiceProblems on Trains

A16.7 km/h
B64 km/h
C60 km/h
D56 km/h

Step-by-Step Solution

Relative speed

= \frac{500}{30} = \frac{50}{3}

m/s

= 60

km/h. Same direction, so train

= 60 + 4 = 64

km/h. (60 km/h is only the relative speed.)

Answer: B) 64 km/h

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