Answer:
$1000
Step-by-step explanation:
Operating income is obtained by mulitplying contribution margin by number of units sold.
i.e., operating income = contribution X units produced
revenue per unit $25
variable cost $ 15
Units 100
Contribution margin = sales price per unit(revenue) - variable costs
=$25-$15 = $10
Operating income= $10 x 100
=$1000