The average of six member family is 22 years If the youngest member of family is 7years old ,then one hour before the birth of this member the average of the family was??????????
Answers
Answered by
2
Answer:
Total present age of the family (6*22) = 132 years
Total age of the family 7 years ago = (132 - 7*6) = 90 years
At that time, the number of member = 5
Therefore Average age at that time = 90/5 = 18 years
Similar questions