Asked by Anonymous

Pedro and Steve are running laps.
Pedro runs a lap in 6 minutes and Steve runs a lap in 8 minutes. If they start at the same time, how many minutes will it be before they meet again at the starting point?
Answered by drwls
Where they "lap" each other the first time may or may not be the starting point (although it is here); so look for the time that is a integer multiple of both 6 minutes and 8 minutes. That would be 24 minutes, the least common multiple of 6 and 8. One person will have run 4 laps and the other 3.
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