Quantitative Aptitude • Time, Speed & WorkMedium
A train 580 m long is running at 216 km/h. How long will it take to cross a platform 1700 m long?
A. 9.67 seconds
B. 10.56 seconds
C. 38 seconds✓ Correct Answer
D. 28.33 seconds
💡 Solution & Explanation
To cross a platform, the train covers its own length plus the platform: 580 + 1700 = 2280 m. Speed = 216 × 5/18 = 60 m/s. Time = 2280 ÷ 60 = 38 seconds. Using only the train's length gives 9.67 seconds, which is the time to pass a pole, not a platform.
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