Quantitative Aptitude • Time, Speed & WorkMedium
A train 150 m long is running at 108 km/h. How long will it take to cross a platform 180 m long?
A. 5 seconds
B. 3.06 seconds
C. 6 seconds
D. 11 seconds✓ Correct Answer
💡 Solution & Explanation
To cross a platform, the train covers its own length plus the platform: 150 + 180 = 330 m. Speed = 108 × 5/18 = 30 m/s. Time = 330 ÷ 30 = 11 seconds. Using only the train's length gives 5 seconds, which is the time to pass a pole, not a platform.
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