It is known that subway trains run every 10 minutes, and the stops run every 1 minute. What's the rate of passengers getting on the platform as soon as they arrive? Senior high school mathematics compulsory three Is right. ...

The train leaves every ten minutes, stops for one minute, comes again after ten minutes, and so on. ...

So it can be understood that the train stops every 1 1 minute 1 minute.

This person may arrive at any time in this 1 1 minute, and only qualified trains will stop in this 1 minute.

This minute accounts for 1/1of1minute, so the probability of encountering the event mentioned in the question is11/.

In addition: draw a long strip and divide it into four parts in this order: 10 cm, 1 cm, 10 cm, 1 cm. 1cm partial coloring. No matter how it is divided by 1 1cm, the colored part always accounts for11.

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