Question
Phil takes out a bank loan of $150 000 to buy a house, at an annual interest rate of 3.5%. The interest is calculated at
Phil takes out a bank loan of $150 000 to buy a house, at an annual interest rate of 3.5%. The interest is calculated at the end of each year and added to the amount outstanding.
To pay off the loan, Phil makes annual deposits of $P at the end of every year in a savings account, paying an annual interest rate of 2% . He makes his first deposit at the end of the first year after taking out the loan.
David visits a different bank and makes a single deposit of $Q , the annual interest rate being 2.8%.
David wishes to withdraw $5000 at the end of each year for a period of n years. Show that an expression for the minimum value of Q is
5000 5000 1.028 + +, - + 5000 1.028" 1.0282
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