Question 5

On Mr. Heaventoe¡¦s gravestone, there was a passage: ¡§One-sixth of Mr. Heaventoe¡¦s life was his childhood; one out of twelve was his teenager period; he remained single for another one-seventh of his life. After five years of his marriage, he had his first child. However, his child died four years before he did, which means that his child only lived half of Mr. Heaventoe¡¦s life.¡¨ How long did Mr. Heaventoe lived for?

Answer: Let Mr. Heaventoe¡¦s life be 1, the number of years Mr. Heaventoe lived: (5+4)/(1-1/6-1/12-1/7-1/2) =9/(3/28) =84 ¡ïMr. Heaventoe lived for 84 years

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