Respuesta :
15.8 % will be the overall cost of capital for the firm at 8% debt capital and 20% equity capital.
Weight of equity = 65%
Cost of Capital of equity = 20%
overall cost of equity = Weight of equity x Cost of Capital of equity
                  =  65% x 20%
                  = 13%
Weight of debt= 35%
Cost of Capital of debt = 8%
overall cost of debt = Weight of debt x Cost of Capital of debt
                 = 35% x 8%
                 = 2.80%
overall cost of capital for the firm = overall cost of equity + overall cost of Â
                                                  debt
                            = 13% + 2.80%
                            = 15.8%
the overall cost of capital for the firm is 15.8%
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