Mark Corporation produces two models of calculators. The Business model sells for $35, and the Math model sells for $45. The variable expenses are given below:

	Business Model	Math Model
Variable production costs per unit	$13	$18
Variable selling and administrative expenses per unit	$9	$ 8

The fixed expenses are $77,400 per month. The expected monthly sales of each model are: Business, 1,500 units; Math, 500 units.

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

4,003 of each product

1,334 Business Model and 4,003 Math Model

4,003 Business Model and 1,334 Math Model

1,334 of each product