A computer company has two manufacturing plants, one in Rochester and one in Queens. Packaging a computer in Rochester takes 1.5 hours and costs $15, while packaging a computer in Queens takes 2 hours and costs $30. The profit on each computer manufactured in Rochester is $40, and the profit on each computer manufactured in Queens is $30. The Rochester plant has 80 computers available, and the Queens plant has 120 computers available. If there are 210 hours and $3000 allotted for packaging the computers, how many computers should be packaged at each of the two plants to maximize the company's profits?