Answer:
$29
Step-by-step explanation:
Initial Profit for division B is given thus
Profit = Unit profit * production total
at selling price of $30
Unit profit = $30 - ($18 + $3) = $9
profit = $9 * 50,000 = $450, 000
By selling to division B, Division A saves in variable cost
that is, new variable cost = $18 - $1 = $17
In order for division A to still maintain a Profit of $450,000
It must sell to Division B at a price not less than say $ x
we get x as follows
[x - ($17 + $3) ] * 50000 = 450000
x - 20 = 450000/50000
x - 20 = 9
x = 9 + 20
x = $29
sales to division B should be priced no lower than $29