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Internal Rate of Return

Ssabrina4y ago
Hi Mr. John I find this question quite tricky. I understand the definition of IRR is the rate at which NPV is zero and I understand the calculation in this question but I do not arrive at zero if you know what I mean. Please be kind enough and explain this question to me detail. A machine has an investment cost of $60,000 at time 0. The present values (at time 0) of the expected net cash inflows from the machine over its useful life are: Discount rate Present value of cash inflows 10% $64,600 15% $58,200 20% $52,100 What is the internal rate of return (IRR) of the machine investment? A Below 10% B Between 10% and 15% C Between 15% and 20% D Over 20%
John MoffatJohn MoffatTutor4y ago#1
The NPV at 10% is +$4,600, at 15% is - $1,800 (and at 20% is - $7,900, but this is irrelevant), For an NPV of zero the IRR must therefore be somewhere between 10% and 15%. Have you watched my free lectures on this?
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