Two years ago,the average age of a family of 5 members is 16 years.After a baby is born,the average age of a family is the same today.Find the present age of the baby.​

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 :

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