Consider following mutually exclusive projects that have unequal life times. Assume 12% of minimum rate of return. Using NPV and ROR analysis conclude which project is better to invest. Your answer should include incremental analysis for both NPV and ROR. Two mutually exclusive investments have the following cash flows: The minimum rate of return is 6% for the first two years and 10% for the last four years. Using NPV analysis. explain which investment is economically better