Investment "X" and Investment "Y" have the following stream of cash flows (in $ millions), which investment has a lower present value, assuming the interest rate is positive and the same for both investments? Year Y 0 18 o 1 12 0 2 11 18 3 0 12 11 4 0 O Investment X Investment X and Investment Y have the same present value, since the total sum of the cash flows is the same for both We need to know the interest rate to make a comparison, Investment Y