The age of a man 3 years ago was 11 times the age of his son. The ratio of their ages after 15 years will be 2:1
And I assume you want to find their current ages??
Let x and y be the son's and father's ages, now...so we have
11(x-3) = y-3 → 11x - 33 = y - 3 → 11x - 30 = y (1)
2(x + 15) = y + 15 → 2x + 30 = y + 15 → 2x + 15 = y
And setting the "y's" equal, we have
11x - 30 = 2x + 15 rearrange
9x = 45 solve for x
x = 5, and that's the son's age now
And using (1)
11(5) - 30 = y = 25 and that's the father's age now
