A train 180 m long passes a point in 12 s. Find the speed of the train.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 54 km/h.
Concept: Speed = Distance ÷ Time
Distance = Length of train = 180 m
Time = 12 s
Speed = 180 ÷ 12 = 15 m/s
To convert into km/h: 15 × 18/5 = 54 km/h