Train A leaves a station traveling at 60 mph. Exactly one hour later, Train B leaves the same station on a parallel track at 90 mph. How far from the station will Train B overtake Train A?
180 miles
Train A has a 60-mile head start. Train B closes the distance gap at a rate of 30 mph (90 - 60). It takes Train B 2 hours to catch up (60 ÷ 30). In 2 hours, Train B travels 90 × 2 = 180 miles.
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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