Math Problem Statement

You have the opportunity to invest in a scheme which will pay $5000 at the end of each of the next 5 years. You must invest $10,000 at the start of the first year and an additional $10,000 at the end of the first year. What is the present value of this investment if the interest rate is 3%?

Solution

To calculate the present value (PV) of the investment, we need to discount each cash flow back to the present using the given interest rate. The investment involves a series of cash flows:

  1. Initial investment: $10,000 at the start of the first year.
  2. Additional investment: $10,000 at the end of the first year.
  3. Payments received: $5,000 at the end of each of the next 5 years.

The interest rate is 3% per year.

Step-by-Step Calculation:

1. Initial Investment:

  • The initial $10,000 is invested at the start of the first year, so it is already in present value terms.
  • PV of this cash flow = 10,000-10,000.

2. Additional Investment at the End of Year 1:

  • This $10,000 is made at the end of the first year, so we discount it by one year.
  • PV = 10,000(1+0.03)1\frac{-10,000}{(1 + 0.03)^1}

3. Payments Received at the End of Each Year:

  • The payments are received at the end of each of the next 5 years. We discount each payment individually.

The formula to calculate the present value of a single future cash flow is: PV=C(1+r)tPV = \frac{C}{(1 + r)^t} where CC is the cash flow, rr is the interest rate, and tt is the time in years.

Let's calculate the present value of each of the 5 payments of $5,000.

  • Year 1: PV1=5,000(1+0.03)1PV_1 = \frac{5,000}{(1 + 0.03)^1}
  • Year 2: PV2=5,000(1+0.03)2PV_2 = \frac{5,000}{(1 + 0.03)^2}
  • Year 3: PV3=5,000(1+0.03)3PV_3 = \frac{5,000}{(1 + 0.03)^3}
  • Year 4: PV4=5,000(1+0.03)4PV_4 = \frac{5,000}{(1 + 0.03)^4}
  • Year 5: PV5=5,000(1+0.03)5PV_5 = \frac{5,000}{(1 + 0.03)^5}

4. Total Present Value:

  • Sum the present values of all cash flows to get the total present value of the investment.

Let's compute these values.The present value of this investment, given a 3% interest rate, is approximately $3,189.80.

Would you like further details on the calculation, or do you have any other questions?

Here are 5 related questions you might find interesting:

  1. How does changing the interest rate affect the present value of the investment?
  2. What would the present value be if the payments were received quarterly instead of annually?
  3. How would the present value change if the additional investment was made at the start of the first year instead of the end?
  4. What is the future value of the investment if you reinvest all payments received at the same interest rate?
  5. How would the calculation differ if the interest rate were compounded monthly instead of annually?

Tip: Understanding the time value of money is crucial for evaluating investment opportunities, as it helps in comparing cash flows occurring at different times.

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Math Problem Analysis

Mathematical Concepts

Time Value of Money
Present Value
Interest Rates

Formulas

Present Value formula: PV = C / (1 + r)^t

Theorems

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Suitable Grade Level

Advanced