The average age of a family of 18 members is 82 years. If the age of the youngest member is 12 years, what was the average age of the family just before the birth of the youngest member?
74 years . The total # of years now = 18 * 82 = 1476 years. 12 years ago this was = 1476 - 18*12 = 1260 years. Divided over 17 members gives 1260 / 17 = 74.1 years
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, the average age of the family at the birth of the youngest member was?
The average age of a 52 members of a village is 32 years. If the age of the youngest member be 7 years. Then what was the average age of the village at the birth of the youngest member?
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member.
Find how much younger is the new member?
Sum of the ages of a boy and his father is 70 years. Before 20 years Father's age was 9 times the age of the boy. What was the age of father in years at the time of birth of the child?
The total age of 6 persons is 114. Besides the eldest the average of other 5 persons is 16. If all ages are in AP, then what will be the age of the youngest person?
