(1) Option ( c) the project’s payback period will be unchanged
(2) Calculating Pre-tax Cost of Debt:
After-tax Cost of Debt = 10%
Pre-tax Cost of Debt = X (1-0.35) = 10%
Pre-tax Cost of Debt = X (0.65) = 0.10
Pre-tax Cost of Debt = 0.1538 (or) 15.38%
(3) Calculating Targeted Debt Ratio:
Debt $15,000,000
Equity $35,000,000
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TOTAL $50,000,000
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Targeted Debt Ratio = $15,000,000 / $50,000,000
Targeted Debt Ratio = 0.30 (or) 30%