(1) Set X Class A TVs, Y Class B TVs and Q Class C TVs.
① 1500X+2 100y=90000
X+Y=50
X=25,Y=25
② 1500X+2500Q=90000
X=35,Y= 15
(3) After estimation, it is easy to conclude that the combination of B and C is not satisfactory and should be discarded.
(2) Scheme 1: 25x 150+25x200=8750 (yuan)
Scheme 2: 35x150 =15x250 = 9000 yuan.
∵9000>8750
Option 2
A: ———————.