🎴 Flashcard Mode
Math and Logic Puzzles
Card1 / 18
Mastered0
Review0
QuestionClick to flip
How long will a train 100m long traveling at 72kmph take to overtake another train 200m long traveling at 54kmph
AnswerClick to flip back
A
1 min
💡 Explanation:
Relative speed = 72 - 54 = 18 kmph = 5 m/s. Total distance to cover = 100 + 200 = 300m. Time = distance/speed = 300/5 = 60 seconds = 1 minute. The faster train must cover the sum of both train lengths to completely overtake.