A store sells two types of toys, A and B. The store owner pays R120 and R210 for each one unit of toy A and B respectively. One unit of toy A yields a profit of R30 while a unit of toy B yields a profit of R45. The store owner estimates that no more than 2000 toys will be sold every month and he does not plan to invest more than R280000 in inventory of these toys.

How many units of each type of toys should be stocked in order to maximize his monthly total profit?
 
Let x be the number of toy A and y the number of toy B that the store owner should stock.
 
Fill in the missing information below by filling in the values obtained using Excel:

Variables
x	y
		- 3 decimal places
Objective:
	- 2 decimal places
Constraints:
Stock constraint:
Financial constraint: