Math Problem Statement

A project requires an initial investment of $50,000. It is expected that the project will last 3 years and generate net cash flows like as follows:

Year 1: $20,320

Year 2: $25,180

Year 3: $23,350

What is the payback period for the project?

Solution

The payback period is the time it takes for the initial investment to be recovered through the net cash flows generated by the project. In this case, we will track the cumulative cash flows for each year and determine when the total equals or exceeds the initial investment.

Given:

  • Initial Investment: $50,000
  • Year 1 cash flow: $20,320
  • Year 2 cash flow: $25,180
  • Year 3 cash flow: $23,350

Let's calculate the cumulative cash flows year by year.

  1. After Year 1: Cumulative Cash Flow=20,320\text{Cumulative Cash Flow} = 20,320 At this point, the investment has not been recovered yet.

  2. After Year 2: Cumulative Cash Flow=20,320+25,180=45,500\text{Cumulative Cash Flow} = 20,320 + 25,180 = 45,500 The investment still has not been fully recovered.

  3. After Year 3: Cumulative Cash Flow=45,500+23,350=68,850\text{Cumulative Cash Flow} = 45,500 + 23,350 = 68,850 Now, the investment has been fully recovered between Year 2 and Year 3.

Payback Period Calculation:

The total amount after Year 2 is $45,500, and the remaining amount to recover is: 50,00045,500=4,50050,000 - 45,500 = 4,500 The cash flow in Year 3 is $23,350, so the fraction of Year 3 required to recover the remaining $4,500 is: 4,50023,3500.193\frac{4,500}{23,350} \approx 0.193 Thus, the payback period is 2 full years plus 0.193 of the 3rd year.

Payback Period=2+0.1932.19 years\text{Payback Period} = 2 + 0.193 \approx 2.19 \text{ years}

Conclusion:

The payback period for the project is approximately 2.19 years.

Would you like more details on any specific part or have any further questions?


Here are 5 related questions to explore:

  1. What is the significance of the payback period in project evaluation?
  2. How does the payback period differ from other investment appraisal techniques like NPV or IRR?
  3. What factors can affect the cash flows over the years and, hence, the payback period?
  4. How is the payback period used in decision-making for multiple projects?
  5. Can the payback period method account for the time value of money?

Tip: While the payback period is easy to calculate, it ignores cash flows after the break-even point and the time value of money, so it’s often used alongside other methods like NPV.

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Math Problem Analysis

Mathematical Concepts

Payback Period
Cumulative Cash Flows
Fractional Year Calculation

Formulas

Cumulative Cash Flow = Year 1 Cash Flow + Year 2 Cash Flow + ...
Remaining Recovery in Year 3 = Initial Investment - Cumulative Cash Flow After Year 2
Fraction of Year 3 = Remaining Recovery / Year 3 Cash Flow

Theorems

Basic Payback Period Method

Suitable Grade Level

College or Advanced High School (Grades 11-12)