Here comes the master of math problems.

1. Let the purchase prices of A and B be x, Y.7X+8Y=380 10X+6Y=380, respectively. If you subtract the two expressions, you can get 3X=2Y; if you substitute, you can get x = 20 and y = 30.

2.( 1) Each garment production line produces X tents every day, and each children's clothing production line produces Y tents every day.

x+2y= 105

2x+3y= 178

De: x=4 1 (I)

Y=32 (top)

(2)(4×4 1+5×32)×3=972 (on)

972 & lt 1000

The factory is producing at full capacity and can't finish the task on schedule.