Chapter 7: Factoring
7.10 The New Committee Member’s Age
Every four years, a swim committee has an election for 10 council members. In 2016, nine members stayed, and the oldest council member retired and was replaced by a new, younger member. If the average age of the committee members in 2012 was exactly the same as the average age of the committee members in 2016, how many years younger is the new member than the one who retired?
