Question

Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86 and you make a $45 profit on each one. The second type, B, has a cost of $130 and you make a $35 profit on each one. You expect to sell at least 100 laser printers this month and you need to make at least $3850 profit on them. How many of what type of printer should you order if you want to minimize your cost?


Answer 1

Type A has lower costs, and more profit each. If you sell 100 of them, you make 4500 dollars.

There is no way buying any type B can mimize cost.

Either you copied this problem wrong, or the author was either not thinking, or has no command of the subject of basic calculus.