please give correct Answers

From the following information ascertain (a) p/v Ratio (b) Break-even point (c) profit when sales are $. 2,50,000 (d) sales to get $. 70,000 profit. $. Sales 2,00,000 Less: Marginal cost (variable cost) 1,50,000 Contribution 50,000 Less: fixed cost 15,000 Net profit 35,000