A baby has been born with a small tail. It is a case exhibiting

A baby has been born with a small tail. It is case exhibiting :

A baby has been born with a small tail. It is case exhibiting :

3 yr ago, the average age of a family of 5 members was 17 yr. A baby having been born, the average age of the family is same today. The present age of the baby is

A baby is born. It is a boy or a girl.

3 years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is :