Mark Corporation produces two models of calculators. The Business model sells for $39, and the Math model sells for $32. The variable expenses are given below:

	Business Model	Math Model
Variable production costs per unit	$18	$12
Variable selling and administrative expenses per unit	$12	$ 7

The fixed expenses are $75,900 per month. The expected monthly sales of each model are: Business, 1,600 units; Math, 550 units.

The break-even point in unit sales for the expected sales mix is closest to: (Do not round intermediate calculations.)

1,937 of each product

1,937 Business Model and 5,635 Math Model

5,635 Business Model and 1,937 Math Model

5,635 of each product