Multiple choice general knowledge math & puzzles

Two trains A and B are moving in opposite directions with speeds of 40 km/h and 60 km/h respectively. The distance between the two trains is 50 kms. At what point the two trains meet?

  1. At a point 30 km from A

  2. At a point 20 km from A

  3. At a point 20 km from B

  4. At a point 25 km from A
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Relative speed is 40 + 60 = 100 km/h. Time to meet = 50km / 100km/h = 0.5 hours. In 0.5 hours, Train A travels 40 * 0.5 = 20 km. So they meet 20 km from A.

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