Brain Teasers
Finish Together
Three people are having a race. It takes Bob three minutes to finish a lap. It takes Travis 6 minutes to finish a lap. Jil takes 9 minutes to finish a lap. After how many minutes will they all finish at the same time?
Answer
18 minutes.After 6 laps Bob has gone for 18 minutes.
After 3 laps Travis has gone for 18 minutes.
After 2 laps Jil has gone for 18 minutes.
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