Problema Solution
George is 3 years older than his sister janet. In 7 years she will be six-seventh of his age. How old are they?
Answer provided by our tutors
Let the age of Janet be x. Given,George is 3 years older than his sister Janet. So the age of George = x+3 After seven years, their ages will be x+7 and (x+3)+7 Given, (x+7)/(x+10) = 6/7 7(x+7) = 6(x+10) 7x+49 = 6x+60 7x-6x = 60-49 x = 11 Therefore, the age of Janet is 11 years