**Use the subway train schedule below to answer the question.**Train Schedule

Train

Arrives Every...

Red line 8 minutes

Blue line

10 minutes

Yellow line 12 minutes

The red line and the blue line trains just arrived at the station. When will they next arrive at the station at

the same time?

They will next arrive at the station in

minutes.

**Answer:**

40 minutes

**Step-by-step explanation:**

The least common multiple of 8 minutes and 10 minutes is ...

LCM(8, 10) = 8·10/GCD(8, 10) = 80/2 = 40

**The red and blue trains will arrive together again in 40 minutes**.

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