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Five bus lines depart at intervals of 4, 5, 7, 11, 12 minutes. In the morning, all five depart simultaneously at 7:00. After how many minutes do all five lines depart at the same time again?

Final Answer:

x =  4620 min

Step-by-step explanation:

4=22 5 ...  prime number 7 ...  prime number 11 ...  prime number 12=223 LCM(4,5,7,11,12)=2235711=4620  x=LCM(4,5,7,11,12)=4620 min



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You need to know the following knowledge to solve this word math problem:

algebraarithmeticbasic operations and conceptsUnits of physical quantitiesGrade of the word problem

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