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.