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I NEED TO REPLACE MY CONCRETE IN 7 YEARS. THE TOTAL COST IS $15,000, HOW MUCH DO I NEED TO SAVE ANNUALLY AT 5%.

User Brian Chapados
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1 Answer

12 votes
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9514 1404 393

Answer:

$1,754.57

Explanation:

If you put the amount in savings at the beginning of the year, then the balance after 7 years is ...

A = P(1 +r)((1 +r)^7 -1)/r . . . . for payment P at annual rate r for 7 years

15000 = P(1.05)(1.05^7 -1)/0.05 = 8.54911P

Then the amount P that needs to be saved is ...

15000/8.54911 = P = 1754.57

You need to deposit $1,754.57 at the beginning of each year for 7 years to have a balance of $15,000 at the end of 7 years.

_____

If you wait until the end of the year to deposit the money, the amount will need to be 5% higher: $1,842.30.

User Dale Ragan
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