There are three members in a family A, B and C. The average age of three members was 40 years on the days of C's marriage, the average age of family will be 35 years when C's son was born after two years of marriage, find the age of C's wife at the time of marriage.
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The average age of a husband and a wife, who were married 4 years ago, was 25 years at the time of their marriage, The average age of the family consisting of husband, wife and a child born during that interval is 20 years, today, The child is.
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The average age of a husband and a wife, who were married 4 years ago, was 25 years at the time of their marriage, The average age of the family consisting of husband, wife and a child born during that interval is 20 years, today, The child is.
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