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A contractor is evaluating an investment in a new trenching machine that costs $80,000. It is expected to generate additional net cash inflows of $20,000 per year. What is the payback period for this investment?

  1. A2 years
  2. B4 years
  3. C3 years
  4. D5 years
Show answer & explanation

Correct answer: B. 4 years

The payback period is calculated as the Initial Investment divided by the Annual Net Cash Inflow. So, $80,000 / $20,000 per year = 4 years.

Why the other options are wrong

  • A. This would be the result if the initial investment was $40,000.
  • C. This would be the result if the initial investment was $60,000.
  • D. This would be the result if the initial investment was $100,000.

Payback Period

The payback period is the amount of time required for an investment to generate enough cash flow to recover its initial cost. It is a simple capital budgeting technique.

  • Formula: Initial Investment / Annual Cash Inflow (for even cash flows)
  • Measures investment liquidity and risk
  • Generally, shorter payback periods are preferred

Memory trick: Payback Period: Initial Cost 'Divided' by annual cash, to see how 'Quickly' you get your money back.

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