Dos Mfg Co. sells two products. Product A sells for $10 per unit with variable costs of $6 per unit. Product B sells for $20 per unit with variable costs of $12 per unit. Product A sells 75%, while B sells 25% of the total units sold. Currently, with combined sales of 20,000 units, the company made Total Revenue of $250,000, after subtracting variable cost got Total Contribution Margin of $100,000, and after subtracting Total Fixed Cost of $50,000, earned Operating Profit of $50,000. When in breakeven, how many units of A and B would be sold?