Two runners begin running laps around a one-mile track at the same time. The first runner completes a mile every 6 minutes and the second runner completes a mile every 8 minutes. After how long will the first runner lap the second runner?
At 24 mins the will be together again at the starting line.....
the slower runner will be beginning their 4th mile
the faster runner will be a mile further and beginning their 5 th mile and will 'lap' the slower......
Maybe LCM 6, 8 = 24