The per-unit production costs for a product is as follows: \$15 direct materials; $10 direct labour; $5 variable overhead. In addition, there is a $20,000 fixed overhead per week. Period costs are $10 variable selling costs per unit, and $40,000 fixed selling and administrative costs per week. The break-even point for the week was 3,000 units. What was the selling price used? $60 $40 $20 None of the listed choices are correct