Opening prize fund 80,000 + Donation 15,000 + Interest received 5,000 + Interest accrued 3,000 = 1,03,000.
Less closing prize fund 70,000.
Prize fund expenses = 1,03,000 minus 70,000 = Rs. 33,000.
Note: Topic relates to NPO; placed under Financial Statements/Nature-Structure as closest fit.