Answer:
Option (b) $1.00
Step-by-step explanation:
Data provided in the question:
Selling cost = $9/ unit
Number of units sold = 10,000
Accounting profit = $20,000
Variable costs = $6 per unit.
Now,
let x be the increase in variable cost
Account profit = Revenue - Variable cost
thus,
$20,000 = $9 × 10,000 - ($6 + x) × 10,000
or
$20,000 = ( $9 - $6 - x ) × 10,000
or
$2 = $3 - x
or
x = $1.00
hence,
Option (b) $1.00