. A recent mining engineering graduate wants to purchase a new car in 5 years which presently costs $ 40,000 but the price of the car is rising at an annual compound rate of 12%. If he makes semiannual deposits to an account which pays 16 % compounded semiannually, how large must these payments be?
Amount Req after 5 years = Current Price (1+i)5
Where i is inflation rate
= $ 40,000 * (1+0.12)5
= $ 40,000 * (1.12)5
= $ 40,000 * 1.7623
= $ 70,493.67
Thus FV of annuity shall be equal to $ 70,493.67
Here Payments are semi nnual
FV of Annuity = Cash flows * [ (1+r)n - 1 ] / r
where r is int rate per six months & n is no. of six months
$ 70,493.67 = Cash Flow * [ (1+0.08)10 - 1 ] / 0.08
= Cash Flow * [ (1.08)10 - 1 ] / 0.08
= Cash Flow * [ 2.1589 - 1 ] / 0.08
= Cash Flow * [ 1.1589 ] / 0.08
Cash Flow = 70,493.67 * 0.08 / 1.1589
= $ 4,866.25
Pls cmment, if any further assistance is required.
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