Continuously 7164

Three trams left the tram depot at once. The first has a 20-minute cycle, the second a 40-minute cycle, and the third a 65-minute cycle. After how many minutes will the same trams meet if they run continuously (drivers take turns)?

Correct answer:

t =  520 min

Step-by-step explanation:

20=225 40=235 65=513 LCM(20,40,65)=23513=520  t=LCM(20,40,65)=520 min

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