Lucky Cement company has unlevered beta of 1. Risk free rate in market is 9% and investor required 5% risk premium to invest in market. Tax rate of company is 35%. Following is the schedule of borrowing rate obtained from bank for different level of debt level in capital structure. Firm anticipating Rs. 200,000 operating profit(EBIT). DEBT RATE 0 0.1 0.1 0.2 0.105 0.3 0.11 0.35 0.12 0.45 0.14 0.55 0.16 What wil be the value of WACC at Optimal Capital Structure. Put only answer value in decimals in the box.