Explanation:

 Fixed Assets Rs 5,00,000; Current Assets Rs 3,00,000; Equity Share Capital Rs 4,00,000; Reserve Rs 2,00,000; Long-term Debts Rs 40,000

Proprietary ratio= proprietor fund/ total assets*100

                         =Rs. 6,00,000  * 100

                           Rs. 8,00,000

                         =75%(ANSWER)

 proprietor's fund=(Equity Share Capital) Rs 4,00,000 + (Reserve) Rs 2,00,000 = Rs. 6,00,000

total assets= (Fixed Assets) Rs 5,00,000 + (Current Assets) Rs 3,00,000 = Rs. 8,00,000