Mathematics, 26.05.2021 01:50, Edith21

A town has 20,000 adult residents with an average age of 40. The town also has a certain number of child residents with an average age of 10. If the average age of each resident of this town is 28, which of the following is the closest to the number of children who live in this town?

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A town has 20,000 adult residents with an average age of 40. The town also has a certain number of c...