Puzzle task: How many people are on this train from the start?

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At the first station of a railway line, 27 people get off a train. 22 people waiting get on the train. Now there are 74 people in it. So how many people are on the train from the start?

Here’s the denouement: if your answer is 69,…that’s wrong. Pay close attention to the question. The passengers who are on the train from the beginning are searched for. From the 74 passengers who are sitting on the train after the stop, you have to subtract the 22 people who boarded the train. So the solution is: 52