Question

The ratio of the ages of a father and son is 17:7 respectively. Six years ago the ratio of their ages was 3:1 respectively. What is the son's present age.

Answer 1

dad's age now / son's age now = 17/7
dad's age 6 yrs ago / son's age 6 yrs ago = 3/1

Answer 2

let x = fathers age and y = sons age now
x/y = 17/7
giving x = 17y/7................(1)
also

(x -6) / (y - 6) = 3/1
giving
x - 6 = 3(y-6) .......................(2)


solve equations (1) and (2) to find x and y

Answer 3

Thank you. c:

Answer 4

Sounds good