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Q18
(CISF/2022)
Science & Technology › Basic Science (Physics, Chemistry, Biology)
A train of 150 m length crosses a milestone in 10 seconds. Another train with the same speed crosses the milestone in 12 seconds. What is the length of the second train ?
Result
Your answer:
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·
Correct:
A
Explanation
To find the length of the second train, we first calculate the speed of the first train. When a train crosses a milestone, the distance covered is exactly equal to the length of the train.
- Speed of the first train: Speed = Distance / Time = 150 m / 10 s = 15 m/s.
- Speed of the second train: The problem states it has the same speed, so its speed is also 15 m/s.
- Length of the second train: Distance (Length) = Speed × Time = 15 m/s × 12 s = 180 m.
Therefore, the length of the second train is 180 m, making option A the correct answer.
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