the average age 9 members of a committee are the same as it was 2 years ago, b

Question

the average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. find how much younger is the new member than the old number?

Options:

A . 7 years

B . 11 years

C . 18 years

D . 27 years

Answer: Option C
Explanation :

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