Sport field

There is a circular path around a sport field. Sonia takes 18 minutes to drive one round of the field, while Roland takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes will they meet again at the starting point?

Correct answer:

t =  36 min

Step-by-step explanation:

a=18 min b=12 min  18=232 12=223 LCM(18,12)=2232=36  t=LCM(a,b)=LCM(18,12)=36 min

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