3 years ago ,the average of a family of 5 members was 17 years. . A baby having been born ,the average age of the
family is the today. The present age of the baby is
Total age of 5 members, 3 years ago = (17 x 5) years = 85 years
Total age of 5 members now= (85 + 3 x 5) years = 100 years
Total age of 6 members now = (17 x 6) years = 102 years
`:.` Age of the baby = (102 - 100) years = 2 years.
Submit Comment/FeedBack