Question

试验小学购买了8张桌子和12把椅子，共用去720元，1张桌子和3把椅子的价钱整好相等，桌子和椅子的单价分别

Answer 1

设一把椅子X元，一张桌子3X元

8×3X+12×X=720元
24X+12X=720
36X=720
X=720÷36
X=20

桌子=20×3=60元

答，桌子一张60元，椅子一把20元

Answer 2

神经病

Answer 3

The Experimental Primary School has bought 8 desks and 12 chairs. The total cost of them is 720 yuan, in which the price of a desk is exactly equal to the price of three chairs. The unit prices of the desk and the chair are XX yuan and XX yuan respectively.