Question 1193932
.
<pre>

Use the formula for the future value of an simple interest account

    FV = 3000*(1 + 0.022*t).


Make an equation with FV = 3330  dollars:

    3330 = 3000*(1+0.022*t).


From the equation, find "t" in years

    t = {{{(3330-3000)/(3000*0.022)}}} = 5.


<U>ANSWER</U>.  In 5 years.
</pre>

Solved.


------------


<pre>
Another way to solve is to estimate the interest per year.  

It is  0.22*3000 = 66 dollars.


The expected interest is  3330 - 3000 = 330 dollars, and it will be achieved in  

    {{{330/66}}} = 5 years.
</pre>

You get the same answer.


---------------


To see many other similar &nbsp;(and different) &nbsp;solved problems on simple interest accounts, &nbsp;look into the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/percentage/lessons/Simple-interest-percentage-problems.lesson>Simple interest percentage problems</A> 

in this site.


Learn the subject from there.