SOLUTION: A father is now four times as old as his son.If the sum of their ages ten years ago was sixty.find their present ages ?

Question 174433: A father is now four times as old as his son.If the sum of their ages ten years ago was sixty.find their present ages ?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
A father is now four times as old as his son.If the sum of their ages ten years ago was sixty.find their present ages ?
.
Let x = son's age
then
4x = father's age
.
From:"the sum of their ages ten years ago was sixty" we get:
(x-10) + (4x-10) = 60
x - 10 + 4x - 10 = 60
5x - 20 = 60
5x = 80
x = 16 years (son's age)
.
father's age:
4x = 4(16) = 64 years (father's age)
RELATED QUESTIONS
a father is now four times as old as his son. If the sum of their ages ten years ago was... (answered by rapaljer)

a father is now four times as old as his son. If the sum of their ages ten years ago was... (answered by rapaljer)

a father is now four times as old as his son. if the sum of their ages 10 years ago was... (answered by TimothyLamb)

KHALID IS NOW FOUR TIMES AS OLD AS HIS DAUGHTER. TEN YEARS AGO, IF THE SUM OF THEIR AGES... (answered by mollukutti)

a father is four times as old as the son now.if the sum of their ages ten years ago was... (answered by Bibin)

A father is now twice as old as his son.if the sum of their ages ten years ago was 52,... (answered by ikleyn)

a father is now threes times as old as his son. Eight years ago the father's age was five (answered by ewatrrr)

A man is now 5 times as old as his son, four years ago the product of their ages was 52.... (answered by Cromlix)