Circular track 3

Henry and Margo both start travelling around a circular track at the same time from the same point. Henry is riding his bike and Margo is walking. Henry takes 7 minutes to complete a lap, and Margo takes 12 minutes. How many minutes will pass until they meet at the starting line again?

Final Answer:

t =  84 min

Step-by-step explanation:

a=7 min b=12 min  7 ...  prime number 12=223 LCM(7,12)=2237=84  t=LCM(a,b)=LCM(7,12)=84 min



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