Alyssa and her brother luke are racing cars around a track. it takes alyssas car 15 seconds to go one complete run and around the track. it takes lukes car 12 seonds to go around the track one time. how many seconds will it takes for both cars to return to the starting point at the same time?
Alyssa and her brother luke are racing cars around a track. it takes alyssas car 15 seconds to go one complete run and around the track. it takes lukes car 12 seonds to go around the track one time. how many seconds will it takes for both cars to return to the starting point at the same time?
I think it will have taken 60 seconds.
In 60 seconds, Alyssa will have gone all the way around 4 times, and Luke will have gone all the way around 5 times.
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