Quantitative Aptitude • Time, Speed & WorkEasy
A train 225 m long crosses a pole in 15 seconds. What is the speed of the train in km/h?
A. 54 km/h✓ Correct Answer
B. 15 km/h
C. 4.17 km/h
D. 72 km/h
💡 Solution & Explanation
To pass a pole, the train covers only its own length. Speed = 225 m ÷ 15 s = 15 m/s. To change m/s into km/h, multiply by 18/5: 15 × 18/5 = 54 km/h.
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