ChaseDream
搜索
返回列表 发新帖
查看: 575|回复: 2
打印 上一主题 下一主题

GWD5-33,34

[复制链接]
楼主
发表于 2009-10-21 08:49:00 | 只看该作者

GWD5-33,34

Q33:

Enrollment in City
                    College
in 1980 was 83⅓ percent of enrollment in 1990.  What was the percent increase in the college’s enrollment from 1980 to 1990?

 

A.   10%

B.    16⅔%

C.   20%

D.   25%

E.    183⅓%

Q34:

Professor Vásquez gave a quiz to two classes.  Was the range of scores for the first class equal to the range of scores for the second class?

(1)
                        
In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70.

(2)  In each class, the average (arithmetic mean) score on the quiz was 85.

              

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

希望大牛给予解答,谢谢~~~

沙发
发表于 2009-10-21 09:41:00 | 只看该作者

第一题

应该是90年的-80年的,再除以80年的。

假设90年的是100

所以是(100-83⅓)/83⅓=20%

故选c

第二题

range是指每个班最高分减最低分吧

所以1,2条件单独,和结合都无法得出

选e

板凳
 楼主| 发表于 2009-10-21 10:29:00 | 只看该作者
谢了,我本来以为总分是100的~
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

手机版|ChaseDream|GMT+8, 2025-6-27 09:57
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2025 ChaseDream.com. All Rights Reserved.

返回顶部