GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar

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GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar
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GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar
GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……
Q21:
Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?
(1) During the show, there was an average (arithmetic mean) of 10 unoccupied seats per row for the front 20 rows.
(2) During the show, there was an average (arithmetic mean) of 20 unoccupied seats per row for the back 15 rows.

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.

GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar
M剧场有25排座位,每排有27个座位.问在一场表演中究竟多少个座位被占了.
条件1：前20排座位每排空座的算术平均值为10
条件2：后15排座位每排空座的算术平均值为15
哥们你说是C,那么麻烦你列出你的式子.我怀疑你没有算就直接选C了.
条件1能得出前20排occupied的seats是：（27-10）*20
条件2能得出后15排occupied的seats是：（27-20）*15
但不能得出后5排的occupied的seats,因为已知的条件给的是平均数,没法算出部分的具体数.就是说,你画个集合大饼图,这里有个交集算了两次,你必须减去一次的才能得出最终答案.
所以,两个条件加在一起也得不出整个25排的 occupied seats ,所以选E

GWD管卫东GMAT 第7套题 数学第21题 求讲解 谢谢 正确答案是E 我觉得C……Q21:Theater M has 25 rows with 27 seats in each row. How many of the seats were occupied during a certain show?(1) During the show, there was an average (ar GMAT管卫东GWD 2套 数学部分第6题 求牛人给我讲解一下图是一个半圆 说是一个隧道的横截面那道 半圆的直径是20 正确答案是B 但是我觉得应该是A…… Q6:The figure above shows the dimensions of a semicircu GWD管卫东GMAT 第7套题 If x is a positive integer,is theremainder 0 when 3^X + 1 is divided by 10?（X是指数,我电脑表示不出来）(1) x = 4n + 2,where n is apositive integer.(2) x> 4A.Statement (1) ALONE is sufficient,but statement (2) GWD管卫东 GMAT 第8套 数学第29题 求讲解 但是右上角有个※ 是有争议的意思么?Q29:The annual rent collected by a corporation from a certain building was x percent more in 1998 than in 1997 and y percent less in 1999 than in 199 GMAT的GWD套题和管卫东有什么关系? GWD管卫东 GMAT 第8套 求讲解 先谢过Q9:If an integer n is to be chosen at random from the integers 1 to 96,inclusive,what is the probability that n(n + 1)(n + 2) will be divisible by A.1/4 B.3/8C.1/2D.5/8 E.3/4 现在GMAT数学和GWD的数学比怎么样?如题啦 GWD管卫东 GMAT 第10数学第25 求讲解 先谢过 ……Q25:If the sequence x1,x2,x3,…,xn,… is such that x1 = 3 and xn+1 = 2xn – 1 for n ≥ 1,then x20 – x19 =5个选项分别是 2的19次方,2的20次方,2的21次方,2的20次方-1,2的 为什么考GMAT的都特别推崇GWD题呢,是因为管卫东老师吗 GMAT的GWD题,数学错8道,语文错16道,能的多少分啊 GMAT中提到的PREP和GWD是什么?如题 GWD GMAT数学2道1,If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer,then y must beA.2B.5C.6D.7E.14第二题如图（此题是不是错了?） GMAT的那个GWD题是哪儿的?是管老师个人出的吗?后来是否又出了其他的GWD题呐?本人想多找些复习材料噢,我以为是因为管老师出的才叫的GWD呐.好奇了,那为啥么那真题叫GWD,要以管卫东老师的名 数学第7题 数学,第7题 数学第7题 GMAT里老是提到GWD题是什么题来的?模考题? 管卫东GWD GMAT真题解析我有外面卖的几本白皮GMAT真题,问题是答案很多明显对不上啊,有真题解析or正确的答案吗