SOLUTION: Train A arrives at central station on the hour and every 12 minutes. Train B arrives on the hour and every 15 minutes. When do both trains arrive at the same time?

Question 868862: Train A arrives at central station on the hour and every 12 minutes. Train B arrives on the hour and every 15 minutes. When do both trains arrive at the same time?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
This resembles common denominator search.

__________A____________B
__________0____________0
1________12___________15
2________24___________30
3________36___________45
4________48___________60
5________60, found common minute count.

60 minutes.

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