中间图

Or
icon
OG20官方指南,建议同学们刷3遍。第一遍做题了解题型和考点,第二遍精刷,第三遍集中解决疑难问题。建议考生第一遍刷题采用官方正版纸质书籍,若遇到疑难问题,欢迎在此专区查阅解析,提供解析,参与题目讨论,与所有考生一起解决疑难问题。
数据充分DS-14947 【难度:650-680】 Time Cost00:00
收藏
报告题目错误
请选择错误类型:
请描述一下这个错误:

取消

建议使用官方纸质指南,查看对照完整题目

【OG20-P286-375题】

Was the number of books sold at Bookstore X last week greater than the number of books sold at Bookstore Y last week?

(1) Last week, more than 1,000 books were sold at Bookstore X on Saturday and fewer than 1,000 books were sold at Bookstore Y on Saturday.

(2) Last week, less than 20 percent of the books sold at Bookstore X were sold on Saturday and more than 2 0 percent of the books sold at Bookstore Y were sold on Saturday.

  • 分析A选项 分析选校图标
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  • 分析B选项 分析选校图标
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  • 分析C选项 分析选校图标
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  • 分析D选项 分析选校图标
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  • 分析E选项 分析选校图标
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
该题平均耗时:1m35s ,平均正确率:64.3%。 该题由网友Eq3cz4提供。更多GMAT题目请
暂无雷哥网文字解析
当前版本由 Helen 更新于2018-09-25 17:59:15 感谢由 Helen 对此题目的解答所做出的贡献。

条件1:上周六X书店销量>1000,上周六Y书店销量<1000,但是一周总量无法比较,不充分

条件2:上周六X书店销量<20%X,上周六Y书店销量>20%Y,同理一周总量无法比较,不充分

结合:X书店上周销量>1000/20%,Y书店上周销量<1000/20%,X>Y,充分


题目讨论 6条评论)

用户头像
提交
  • 用户头像

    1337272efzn

    看漏了percentage是占比一周总数,而不是单独周六一天的。
    
    X店卖1000以上,是总数的20%都不到
    而Y店,卖了不到1000本都已经占了总数的20%以上了。
    
    那这样看X的基数肯定比Y的基数要大
    1 0 回复 2021-02-19 00:37:55
  • 用户头像

    187055mhbig

    两个条件都说的是on Saturday在周六啊,只有周六这一天的值知道,可题干不是要求the week一整周吗?两个加起来也只能求周六那天的啊!求解答
    2 0 回复 2019-10-01 16:08:50
    • 评论用户头像

      541613q回复 187055mhbig

      use the percentage divide by the 1000, you will get the who week! read the second condition carefully with a question what is the 20 percent!

      0 0 回复 2019-10-23 10:37:39

    • 评论用户头像

      1521764tlyg回复187055mhbig

      条件二说的是X周六卖的量少于上周整个星期的总量的20%,Y周六卖的量大于整个星期的20%。结合条件一,X卖了一千多本还不到总量的20%,Y卖了不到一千本就超过总量20%了,显然X比Y卖的书多

      1 0 回复 2021-10-01 23:30:51

  • 用户头像

    lxra

    Using the information from statements one and two, we can define the following variables:
    
    x = the number of books sold at Bookstore X last week
    
    y = the number of books sold at Bookstore Y last week
    
    s = the number of books sold at Bookstore X on Saturday (note: s > 1,000)
    
    t = the number of books sold at Bookstore Y on Saturday (note: t < 1,000) SO S>1000>T
    
    p = percent of books at Bookstore X sold last week that were sold on Saturday (note: p < .2)
    
    q = percent of books at Bookstore Y sold last week that were sold on Saturday (note: q > .2) SO q>0.2>p
    
    Using our variables, we can create the following equations:
    
    x = s/p
    
    and
    
    y = t/q
    
    We need to determine whether x > y, or s/p > t/q, or sq > pt. Since s > t and q > p, and all values are positive, we can determine that sq is greater than pt, and thus that x > y.
    
    来自ttp
    0 0 回复 2018-11-18 15:16:33
  • 用户头像

    11

    Was the number of books sold at Bookstore X last week greater than the number of books sold at Bookstore Y last week?
    
    (1) Last week, more than 1,000 books were sold at Bookstore X on Saturday and fewer than 1,000 books were sold at Bookstore Y on Saturday
    (2) Last week, less than 20 percent of the books sold at Bookstore X were sold on Saturday and more than 20 percent of the books sold at Bookstore Y were sold on Saturday
    
    Sir:
    The question is asking about the entire week, highlighted in BLUE. But we have been given information for Saturday. How can we conclude about the entire week based on the information provided for Saturday (Only ONE day) ?
    Please share your thoughts. Thanks again!
    
    
    See, Statement 2 is actually talking about the books sold over the entire week. Try Reading it clearly.
    
    It says, Books sold on Saturday represents some some percentage of the entire week books.
    0 0 回复 2017-11-20 05:09:16
  • 用户头像

    11

    A ] Does not tell us anything about the sales in the rest of the week .INSUFFICIENT
    
    B] Does not tell us 20% of what , hence we cannot compare . INSUFFICIENT
    
    Together 
    
    Let sales at bookstore X on saturday be 1001 . Therefore >5005 books were sold in the week
    
    Let sales at bookstore Y on saturday be 999. Therefore <4995 books were sold during the week
    
    Hence we can conclude that sales at X were greater than Y for the given week
    0 0 回复 2017-11-20 04:59:34
  • 用户头像

    Ada

    条件1得
    X书店上周六卖了多余1000本书 基数大;
    Y书店上周六卖了少余1000本书 基数小
    条件2的20%
    X书店占比小
    Y书店占比大
    由此得出结论:
    书店销量1000/0.2分母越大分子越小,销量越大
    整周X店的销量>Y店的销量
    0 0 回复 2017-08-12 21:29:22
    • 手机注册
    • 邮箱注册
    登录>







    关闭图标

    标题图

    • 图标

      知识库学习

      GMAT语法、逻辑、阅读、数学各单项备考知识点学习及测验
    • 图标

      在线做题

      包含GMAT各单项必考知识点题目、OG/PREP/GWD/雷哥讲义题目、难度650/680/700/730题库题目练习及题目解析
    • 图标

      在线模考

      语文套题/数学套题/全套仿真模考,包含GWD/PERP/精选模考等上百套套题模考
    • 图标

      在线测评

      适合5种不同基础的GMAT学员,测评后可自动出具分数报告及复习计划指导
    • 图标

      资料下载

      GMAT必备备考资料下载、鸡精下载、课程课件等免费下载
    • 图标

      课程学习

      注册会员后,可在GMAT课程区,选择免费直播课程及公开课程进行在线学习
    ×
    请你选择你要查看的模考成绩单
    立即开通 暂不开通
    加载图片
    网络异常