MAT 126 - Your age when you are three times as old as the youngest person
Calculate your age
• Solve the equation for your ages when you are three times as old as the youngest person. Are your answers reasonable?
Me = 54, Uncle = 81, and Niece = 18
• Preliminary Solution
Since 18 is the smallest number, let's start with that as "x".
Then, the person who is 54 now is (x + 36)
The person who is 81 now is (x + 63).
Thus, summing, we get:
x + (x + 36) + (x + 63) = 150.
Or, combining like terms,
3x + 99 = 150.
3x = 51
x = 17.