Question

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?

Answer 1

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.