Glocker Company makes three products in a single facility. These products have the following unit product costs:

	Products
	A	B	C
Direct materials	$10.90	$15.80	$8.00
Direct labour	12.50	12.60	9.90
Variable manufacturing overhead	2.40	1.20	1.40
Fixed manufacturing overhead	11.60	7.20	7.80
Unit product cost	$37.40	$36.80	$27.10

Additional data concerning these products are listed below.

	Products
	A	B	C
Mixing minutes per unit	2.00	1.00	0.50
Selling price per unit	$55.80	$54.60	$43.10
Variable selling cost per unit	$2.10	$1.40	$1.90
Monthly demand in units	2,000	1,000	3,000

The mixing machines are potentially a constraint in the production facility. A total of 5,900 minutes are available per month on these machines. Required: a) How many minutes of mixing machine time would be required to satisfy demand for all four products?( 3 Marks) b) How much of each product should be produced, rounded to the nearest whole unit, to maximize operating income(12 Marks)