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The average age of six children is 13 years and 5 months. a seventh child joins the group, increasing the average age by two months. how old is this seventh child
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The average age of six children is 13 years and 5 months. a seventh child joins the group, increasing the average age by two months. how old is this seventh child

User Arnaud Meuret
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The seventh child is fourteen years and seven month.
User Kusma
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