Business I / NPV and IRR
Practice question · Multiple choice

Two projects both have an IRR of 20%. One is a 5,000€ kiosk, the other a 5 million€ factory. Why does the firm still need NPV to choose?

Hints
  1. Would you rather have 20% of a small number or 20% of a large one?
  2. Ask what units each measure reports its answer in.
Show the answer

C. Because IRR is a rate and says nothing about size

Why

A percentage is scale-blind by construction, and shareholders bank euros rather than rates. Option 3 gets IRR backwards, it is defined by discounting, being the rate that sets NPV to zero. This is why capital budgeting ranks on NPV and reports IRR alongside as a sanity check.

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