11月math原始机经（每日更新）-11.27

aprilarchy

欢迎大家参与讨论啊

[此贴子已经被作者于2007-11-28 0:00:37编辑过]

rain119911

虽然明天考看不了了但还是支持你！！！好人！！！：）

rain119911

借你帖子问道题：

4, there are 50 people attended in an game. It cost them $100 for the entrance ticket, and they spend $110 on refreshment. How many adults attended the game?

1). Adult paid $3 for each entrance, child paid $2

2) Audlt spend $2 on average on refreshment, child spend $2 on average.

此题的条件2是不充分的吧，是个矛盾方程哦~~~如果lz没记错的话那么此题应选A~~

aprilarchy

以下是引用rain119911在2007-11-7 16:38:00的发言：

借你帖子问道题：

4, there are 50 people attended in an game. It cost them $100 for the entrance ticket, and they spend $110 on refreshment. How many adults attended the game?

1). Adult paid $3 for each entrance, child paid $2

2) Audlt spend $2 on average on refreshment, child spend $2 on average.

此题的条件2是不充分的吧，是个矛盾方程哦~~~如果lz没记错的话那么此题应选A~~

agree

zhangcarrie

以后多多来捧场

wupa

好人

感动

edwinayli

many thanks

wgaggassi34

建议直接贴出来,比较好引用!

kellylee_831

楼主是好人，多谢！！！

fk305301

怎么现在都找不到JJ的整理贴了啊～～晕