Answer:
Lower selling price= $29
Explanation:
Giving the following information:
Selling price to outside customers $40
Variable cost per unit $ 30
Total fixed costs $10,000
Capacity in units 20,000
The variable cost per unit would be $1 lower.
Because there is unused capacity, and it won't affect other sales. We will not take into account the fixed costs.
The lower selling price is the one that equals the unitary variable cost.
Unitary variable cost= 30 - 1= $29
Lower selling price= $29