Quantitative Aptitude • Time, Speed & WorkMedium
A train 600 m long is running at 180 km/h. How long will it take to cross a platform 950 m long?
A. 31 seconds✓ Correct Answer
B. 19 seconds
C. 12 seconds
D. 8.61 seconds
💡 Solution & Explanation
To cross a platform, the train covers its own length plus the platform: 600 + 950 = 1550 m. Speed = 180 × 5/18 = 50 m/s. Time = 1550 ÷ 50 = 31 seconds. Using only the train's length gives 12 seconds, which is the time to pass a pole, not a platform.
More Quantitative Aptitude Time, Speed & Work questions
- A can do a job in 15 days and B in 30 days. They work together for 4 days, and then A leaves. In how many…
- A can finish a piece of work in 6 days and B can finish it in 12 days. How many days will they take working…
- Two trains, each 120 m long, are running on parallel tracks in opposite directions at 36 km/h and 18 km/h.…
- Two trains, 230 m and 90 m long, are running on parallel tracks in opposite directions at 54 km/h and 18…
- Two trains, 110 m and 380 m long, are running on parallel tracks in opposite directions at 54 km/h and 72…