Question

A mother has seven children. The mean age of the children is 13 years 2 months. If the mothers age is included, the mean age rises to 17 year's 7 month s .calculate the age of the mothe

Answer 1

Answer:

Let m = Age of mother

(7(13.167)+m) / 8 = 17.583

Multiply both sides with 8

92.169 + m = 140.664

m = 140.664 - 92.169

m = 48.495 = 48 years and 6 months is Mom's age