Capital Structure: Net Operating Income Approach Part 2

Link below is for the study material as well as the JPEG file
drive.google.c...
drive.google.c...
A firm has an EBIT of Rs. 2,00,000 and belongs to a risk class of 10%. What is the value of cost of equity capital, if it employs 6% debt to the extent of 30%, 40% or 50% of the total capital fund of Rs. 10,00,000.