Answer:
86,800 units
Explanation:
Let 'n' be the number of units produced per month.
The cost function for the Specialized automation option is:
[tex]S = 1,395,200 +13n[/tex]
The cost function for the General automation option is:
[tex]G = 180,000 +27n[/tex]
Break-even between both options occurs at the production level for which costs are equal:
[tex]S =G\\1,395,200 +13n = 180,000+27n\\n=\frac{1,395,200-180,000}{14}\\n=86,800\ units[/tex]
The monthly break-even quantity between the two automation approaches is 86,800 units.