Problem Statement
Understanding the Ages
Dr. Johnson is currently 54 years old, while his father is 80 years old.
The Question
The inquiry is: How many years ago was Dr. Johnson’s father three times Dr. Johnson’s age?
Solution
Setting Up the Equation
Let N represent the number of years ago we are trying to determine. The equation to solve is:
3 × (54 – N) = 80 – N.
Solving for N
By rearranging and solving the equation, we find that N equals 41.
Conclusion
The answer is that 41 years ago, Dr. Johnson’s father was three times his age.