the foloowing data are for the akron division of consolidated rubber inc

sales 750,000

net operation income 45,000

stockholders equity 75,000

average operating assets 250,000

residual income 15,000

a The margin used in calculating the return on investment for the past year was

a 6% b 8.67% c 10.00% d 8%

b the return on investment for the past year was

a 6% b 30% c 18% d 26%

c. the turnover used in calculating the return on investment for the past year was

a 1.4 b 3.3 c 10 d 3

d the minimum required rate of return used in calculating the residual income for the past year was

a 30% b 12% c 15% d 6%