建议使用官方纸质指南,查看对照完整题目
【OG20-P273-236题】
A company bought 3 printers and 1 scanner. What was the price of the scanner?(1)The total price of the printers and the scanner was $1, 300.(2)The price of each printer was 4 times the price of the scanner.
-
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



条件1:3p+s=1300,不充分
条件2:p=4s,不充分
结合:p和s都可以求,s=100,p=400,充分
题目讨论 (1条评论)

-
335383cbdab
我感觉可以有
0
0 回复 2021-11-18 10:02:19