ABC Company manufactures three types of filing boxes. Each type
	requires the use of a special machine that has a limited capacity each year.
	Information on the three types of storage units is as follows:
	Special machine capacity			18,000
			Basic	Standard
	Selling price		$ 10.80	$ 36.00
	Variable cost		$ 7.20	$ 24.00
	Machine hours required		0.12	0.60
	The company believes that it can sell as many units as it can produce for each
	type of the products.
	Required:
c)	Compute the number of each type of products to be produced					(4 Marks)
	to MAXIMIZE the company's contribution margin.						Basic
	(Hint: the type of product that has the highest contribuiton margin
	per machine hour should be produced first, followed by the next highest
	in order, and then the least contribution margin. The number of units
	that can be produced is constrained by the special machine capacity.)
							Standard