Multiple choice

A 544 m. long moving train crosses a pole in 16 seconds. The length of platform is equal to distance covered by train in 25 seconds. A person crosses the same platform in 5 minutes and 40 seconds. What is speed of person ?

  1. 2.6 m./sec.

  2. 2.8 m./sec.

  3. 3 m./sec.

  4. 2.5 m./sec.

  5. 3.5 m./sec.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Train length = 544 m, time to cross pole = 16 seconds. Train speed = 544/16 = 34 m/s. Platform length = distance in 25 seconds = 34 × 25 = 850 m. Person crosses 850 m in 5 minutes 40 seconds = 340 seconds. Person's speed = 850/340 = 2.5 m/s.

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