1. Which of the following is not true? Group of answer choices The method in which we calculate a projects Internal Rate of Return (IRR) is called the Discounted Cash Flow approach. The Payback period can be calculated using the discounted (present) values of future cash inflows. The Payback period calculated using this method is what's called the Discounted Payback Period. The Net Present Value is calculated using the present value of the investments and future cash inflows. None of the above (all of the above are correct)