Bob makes the following statement,
"In 15 years, I will be three times as old as I was 9 years ago."

How old is Bob now?


Solution to the Problem:

          Bob is 21 years old now.

      Let x = Bob's age now.
      Then x + 15 = 3 (x - 9).
      So, x + 15 = 3x - 27.
      So, 2x = 42.
      Therefore, x = 21.


Correctly solved by:

1. John Funk Ventura, California
2. James Alarie Flint, Michigan