Multiple choice

A 330 meter long train crosses another 150 meter long train in 55 seconds. If the speed of one train is 24 km/hr, what is the speed of the second train?

  1. 12 km/hr

  2. 24 km/hr

  3. 36 km/hr

  4. Data inadequate

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total distance = 480m. Time = 55s. Relative speed = 480/55 m/s ≈ 31.42 km/hr. If one train is 24 km/hr, the other could be 7.42 km/hr (opposite direction) or 55.42 km/hr (same direction). The problem doesn't specify direction, and neither calculated value matches options A (12), B (24), or C (36). Thus, data is inadequate.