Mathematics, 28.07.2020 16:01 macenzie26

. The sum of the ages of x boys in a class is 84 years. When a new boy aged 8 years, 1 month joins the class, the average age is increased by 1 month

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. The sum of the ages of x boys in a class is 84 years. When a new boy aged 8 years, 1 month joins t...