The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number.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? December 31, 2021December 31, 2021 administrator A. 7 yearsB. 11 yearsC. 18 yearsD. 27 yearsCheck AnswerC. 18 years Share the PostRelated Posts:Three years ago the average age of a family of six…The average age of a husband, wife and their child 3…The average age of a group of 10 persons was…The average age of a husband and a wife is 23 years…Five years ago the average of the ages of A and B…The average age of 15 students of a class is 15…