Two buses

The first bus runs for 15 minutes. The second bus runs after 21 minutes. Together they both leave at 7:00 on Monday. When and what day will they meet?


t = 8:45 hh:mm Wrong answer

Step-by-step explanation:

15=35 21=37 LCM(15,21)=357=105  t1=LCM(15,21)=105 min t2=t1 h=t1:60  h=105:60  h=1.75 h  t=7.00+t2=7.00+1.75=435=8.75=8:45 hh:mm

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