A goods train runs at the speed of 54 kmph and crosses a 24o m long platform…
2024
A goods train runs at the speed of 54 kmph and crosses a 24o m long platform in 30 seconds. What is the length of the goods train?
- A.
150 m
- B.
200 m
- C.
250 m
- D.
300 m
Attempted by 14 students.
Show answer & explanation
Correct answer: B
Solution:
Convert speed to metres per second: 54 km/h = 54 × 5/18 = 15 m/s.
Distance covered in 30 s = speed × time = 15 m/s × 30 s = 450 m.
If the platform length is 240 m, train length = total distance − platform length = 450 − 240 = 210 m.
Conclusion: The correct train length based on the given numbers is 210 m.
Note: None of the provided answer choices (150 m, 200 m, 250 m, 300 m) equals 210 m. The provided answer key entry of 200 m does not match the calculation. If the platform length had been 250 m instead of 240 m, then the train length would be 200 m (450 − 250 = 200), which may indicate a typographical error in the question.