Answer:
OPTION 1:
net income = $100,000
return on equity = $100,000 / $400,000 = 25%
OPTION 2:
net income = $100,000 + $50,000 - ($160,000 x 8%) = $150,000 - $12,800 = $137,200
return on equity = $137,200 / $400,000 = 34.3% (yields highest returns but also increases risk)
OPTION 3:
net income = $100,000 + $50,000 = $150,000
return on equity = $150,000 / ($400,000 + $160,000) = $150,000 / $560,000 = 26.79%