Quantitative Aptitude • Time, Speed & WorkEasy
A train 180 m long crosses a pole in 18 seconds. What is the speed of the train in km/h?
A. 10 km/h
B. 36 km/h✓ Correct Answer
C. 54 km/h
D. 2.78 km/h
💡 Solution & Explanation
To pass a pole, the train covers only its own length. Speed = 180 m ÷ 18 s = 10 m/s. To change m/s into km/h, multiply by 18/5: 10 × 18/5 = 36 km/h.
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