oday Dante and Sharon had their first child and they want to begin saving for their child’s education. With all the expenses of having a new child they feel they can only afford to put away $75 a month but they plan to continue doing so until the child turns 18. They are budgeting for an interest rate of 3.2%, compounded monthly. How much money will they have in the account by their child’s 18th birthday? How much interest will be earned?
Periodic monthly Deposits by Dante and Sharon = $75
They continued it until the child turned age 18 i.e., for 18 years.
Calculating the Future value or accumulated value of account using Future Value of annuity formula:-
Where, C= Periodic Deposits =$75
r = Periodic Interest rate = 3.2%/12 = 0.2666%
n= no of periods = 18years*12 = 216
Future Value = $21,868.46
So, money they have in the account by their child’s 18th birthday is $21,868.46
Amount of Interest Earned = Future Value - (No of Payments*Periodic monthly Deposits)
=$21,868.46 - (216*$75)
=$ 5,668.46
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