The average of 8 people in a golf club is 44. A ninth person joins the club and the new average of the golf club is 47. What is the age, in years, of the ninth person?

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asked Apr 12, 2023 81.9k views

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Qubyte · Answer 1 · 2023-04-15T17:07:10+0000

Answer:

41 year old

Explanation:

Suppose x is the total age before the ninth person joins. x/8=44 then the new persons age is a then x+a/9=47 so you subsitute x=352 then (352+a)/9=47 then 352+a=393 so we find a=41

The average of 8 people in a golf club is 44. A ninth person joins the club and the new average of the golf club is 47. What is the age, in years, of the ninth person?

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