For the cash flow shown below determine the value of X that

For the cash flow shown below, determine the value of X that will make the Net Present Worth at year 0 equal to $2,000 at an interest rate of 10% per year.

Year 0 1 2 3 4 5 6 7 8 9
Cash flow($) 100 100 X 200 300 400 500 1000 700 500

Solution

Find X so that

NPW = NPW

2000 = 100(1+10%)^-0 + 100(1+10%)^-1 + X(1+10%)^-2 + 200(1+10%)^-3 + 300(1+10%)^-4 + 400(1+10%)^-5 + 500(1+10%)^-6 + 1000(1+10%)^-7 + 700(1+10%)^-8 + 500(1+10%)^-9

2000 = 2128.44 + X(1+10%)^-2

This gives X = (2000 - 2128.44)/(1+10%)^-2

= -155.41

For the cash flow shown below, determine the value of X that will make the Net Present Worth at year 0 equal to $2,000 at an interest rate of 10% per year. Year

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