A train $120$ metres long crosses a platform $180$ metres long at $54$ km/h. Time taken is:
Practice this question from Chapter Mock 8: Speed, Time and Distance, with options and an explanation.
Question
A train $120$ metres long crosses a platform $180$ metres long at $54$ km/h. Time taken is:
Option A
15 seconds
Option B
18 seconds
Option C — Correct answer
20 seconds
Correct choice.
Option D
24 seconds
Explanation
$54$ km/h $=15$ m/s. Total distance to cross $=120+180=300$ m. Time $=300\div15=20$ seconds.