Question 1142568
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            Although the problem does not say directly and explicitly that the account is compound annually, I will assume
            by default that it is so.



<pre>
Her account works as if she has two saving plans for 3 years each:


    - first plan is one-time deposit of ₦ 110000 at 5% APY interest compounded annually,  and

    - the second plan is the Ordinary annuity saving plan with annual deposits of  ₦ 55000 at 5% APY interest compounded annually.


So, her total Future Value is the sum of the Future Values of both of these saving plans.



For the first plan,  FV1 = {{{110000*(1+0.05)^3}}} = 127338.75.


For the second plan,  FV2 = {{{55000*(((1+0.05)^3-1)/0.05)}}} = 173387.50.


The total Future Value is  FV = FV1 + FV2 = 127338.75 + 173387.50 = 300726.25.



<U>ANSWER</U>.  The total future value is  ₦ 300726.25,  and it is  ₦ 726.25  greater than  ₦ 300000.
</pre>


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On ordinary annuity saving plans, &nbsp;see my lessons 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Sequences-and-series/Ordinary-Annuity-saving-plans-and-geometric-progressions.lesson>Ordinary Annuity saving plans and geometric progressions</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Sequences-and-series/Solved-problem-on-Ordinary-Annuity-saving-plans.lesson>Solved problems on Ordinary Annuity saving plans</A> 

in this site.



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Regarding the post by @MathTherapy, it is difficult to me to comment it, since the post does not contain NEITHER setup NOR calculations.