Ingrid wants to buy a $17000 car in 5 years. How much money must she deposit at the end of each quarter in an account paying 5.9% compounded quarterly so that she will have enough to pay for her car?
The rate of interest is 5.9% compounded quarterly
So The rate of interest per quarter or period (R) = 5.9/4 = 1.475% or 0.01475
The time period is 5 years
The number of quarters per year=4
So the total number of periods (n ) = 5*4 = 20
Here Ingrid wants to accumulate $ 17000 in 5 years
so Future value (FV) =$ 17000
We have to find the annuity payment (PMT) he has to make per quarter
According to the formula,
FV = PMT* [ (1+ R)n - 1 ] / R
or, $ 17000 = PMT * [(1 + 0.01475)20 -1 ] / 0.01475
or $ 17000 = PMT* [(1.01475)20 - 1 ] / 0.01475
or, $ 17000 =PMT * 23.06683
PMT = $ 17000 / 23.06683 = $ 736.988975
So she must deposit $ 736.988975 or $ 736.989 (rounding to 3 decimals) per quarter (Answer)
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