Question

When you were born, your parents opened an investment account in your name and deposited $1,500 into the account. the account has earned an average annual rate of return of 5.3percent. today, the account is valued at $42,856. how old are you?

Answer 1

To answer this question we are solving for T, time.. or age in this case!

Ending balance = beginning balance x (1+ annual rate of return)T
$42,856 = $1,500 x (1 + 0.53)t
T = 64.91 years

Rounding to the nearest year, you are about to turn 65 years old!