Multiple choice

Two trains A and B of equal length of 200 m. running in opposite direction crosses each other in 16 seconds. What is the speed of train A?

  1. 72 km./hr.

  2. 60 km./hr.

  3. 54 km./hr.

  4. Cannot be determined

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Relative speed = (200 + 200) / 16 = 400/16 = 25 m/s. This is the SUM of both trains' speeds. Without additional information about either train's individual speed or the ratio between them, we cannot determine train A's speed specifically. The answer 'Cannot be determined' is correct.

Keep practicing — related questions