Quantitative Aptitude • Time, Speed & WorkMedium
A train 1070 m long is running at 216 km/h. How long will it take to cross a platform 490 m long?
A. 7.22 seconds
B. 17.83 seconds
C. 26 seconds✓ Correct Answer
D. 8.17 seconds
💡 Solution & Explanation
To cross a platform, the train covers its own length plus the platform: 1070 + 490 = 1560 m. Speed = 216 × 5/18 = 60 m/s. Time = 1560 ÷ 60 = 26 seconds. Using only the train's length gives 17.83 seconds, which is the time to pass a pole, not a platform.
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