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When child turned to 10 years, then the average age of the family becomes 38years.

What was the age of the daughter in law at the time of marriage

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The average age of a couple and their son was 40 years, the

8 years ago there were 5 members in the Arthur's family and

Ten years ago, the ages of the members of a joint family of

There is a family of six persons A, B, C, D, E and F. They a

There is a family of six persons

A. B. C,

D. E and F. They a

A. B. C,

D. E and F. They a

There is a family of six persons A, B, C, D, E and F. They a

There is a family of six persons A, B, C, D, E and F. They a

The average age of a husband and a wife is 23 years when the

In a family, a couple has a son and adaughter.

The age of t

The age of t

Five children were administered psychological test to known