Answer:
6.5%
Explanation:
Firstly, we need to calculate weighted average cost of capital (WACC) as below
WACC = Weight of equity x Cost of equity + Weight of debt x Cost of debt x (1 - Tax rate)
= 67% x 10.6% + (1 - 67%) x 3.34%
= 8.2%
Then, we will add the risk adjustment factor to this WACC to get the proper WACC of the new project, which is 8.2% - 1.7% = 6.5%