Multiple choice

Stations M and N are 276 km apart. At the exact same time, a train starts from M and another from N towards N and M respectively. These trains meet after 8 hours. The train travelling from M to N is slower by 12.5 km/hr in comparison to the other train. What is the speed of the slower train?

  1. 23.5 km/hr

  2. 16 km/hr

  3. 22 km/hr

  4. 19 km/hr

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

Let the faster train's speed be x km/hr. The slower train's speed is (x - 12.5) km/hr. They meet after 8 hours, so combined distance = 8x + 8(x - 12.5) = 276. Solving: 16x - 100 = 276, so 16x = 376, x = 23.5 km/hr. Therefore slower train speed = 23.5 - 12.5 = 11 km/hr. None of the options match this answer.

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