Question

At a train station, the blue line has a train leaving every 15 minutes, the green line has a train leaving every 24 minutes and the red line every 10 minutes. If the first train on each line leaves at the same time,how often will there be trains on all three lines departing the train station at the same time ?

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

120

Step-by-step explanation:

Doing  LCM will help