SOLUTION: Natalie's father is 4 times as old as Natalie. After 5 years, the father will be three times as old as Natalie. Find their present ages.
Algebra ->
Customizable Word Problem Solvers
-> Age
-> SOLUTION: Natalie's father is 4 times as old as Natalie. After 5 years, the father will be three times as old as Natalie. Find their present ages.
Log On
Question 1164899: Natalie's father is 4 times as old as Natalie. After 5 years, the father will be three times as old as Natalie. Find their present ages. Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Natalie's father is 4 times as old as Natalie. After 5 years, the father will be three times as old as Natalie. Find their present ages.
------------------
F = 4N
F+5 = 3*(N+5)
If Natalie's age is x years, then the father's age is 4x, according to the condition.
After 5 years
3*(x+5) = 4x + 5
3x + 15 = 4x + 5
15 - 5 = 4x - 3x
10 = x.
ANSWER. Natalie is 10 years old. Her father is 4x = 4*10 = 40 years old.
