Multiple choice

A train running at the speed of (15\frac{m}{s}) takes 20 seconds to pass a man running at the speed of (5\frac{m}{s}) in the same direction. Find the length of the train.

  1. 100 meters

  2. 200 meters

  3. 250 meters

  4. 400 meters
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When two objects move in the same direction, their relative speed is the difference of their individual speeds. Relative speed = 15 - 5 = 10 m/s. Distance covered in 20 seconds = 10 × 20 = 200 meters. This distance equals the length of the train.

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