I need 9.22 please!

9.21 The capital budgeting committee of the ABC Company is contemplating five independent proposals for projects to be included in the forthcoming year's budget; their cash flows are given in Table 9-13. The ABC Company has established a MARR of 20%. Assuming that capital is not rationed, which projects should the company select and what is the total investment required? Use the ROR method. Table 9-13 End of Year Project 1 Project 2 Project 3 Project 4 Project 5 0 1 2 3 4 -$100000-$200 000-$150000-$80 000 35027 77258 63 516 32000 35 027 77258 63 516 32000 35027 77 258 63516 32000 35027 77 258 63516 32000 -$300 000 98 769 98 769 98 769 98 769 Ans. ii = 15%, 13 = 20%, i; = 25%, i = 21.85% (by interpolation),is = 12%. Projects 2, 3, and 4 should be selected at a total investment of $430 000 Would the results of Problem 9.21 change if (a) MARR = 10%? (b) MARR = 13% and capital is rationed at $430 000? Ans.(a) no; (b) no 9.22