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    April 13

    大家来做智力题

    我表哥发给我的,题中人名均为化名,如有雷同纯属巧合:
     
    小罗和小孙都是钟老师的学生,钟老师的生日(M月N日)是下列中的某一天,钟老师把M告诉了小罗,把N告诉了小孙,钟老师问她们知道他的生日是哪一天吗?

      3月4日     3月5日      3月8日
      4月5日     4月16日
      6月4日     6月7日
          12月2日   12月8日    12月16日

     
    小罗说:如果我不知道的话,小孙肯定也不知道
    小孙说:本来我也不知道,但是现在我知道了
    小罗说:哦,那我也知道了

     
    钟老师的生日是哪一天?    
     
    注:原题稍有改动;此题谨献给即将请我们吃饭的我的非印度籍officemate;与电梯无关。

    Comments (9)

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    No namewrote:
    9.1 号
     
    June 17
    Picture of Anonymous
    w_ou wrote:
    不错的题,是比最初那道题更有意思
    May 1
    Josephwrote:

    4.16

    (1) 根据罗老师第一句话排除6月,12月(否则6.2, 12.7是小孙能独立判断的)

    (2) 根据第二句小孙的话, 排除4.5, 3.5 (如果日子是5, 小孙还是无法判断哪天)

    (3) 根据罗老师第三句话, 确定是四月(在三月罗老师无法判断是3.4 or 3.8)

     

    --> 4.16

    Apr. 19
    小猪啊笨wrote:
    钟老师生日是几号呀??告诉我理由呀……
    Apr. 16
    nanfeiwrote:
    小罗的第一句话好象redundant...
    不是多选题吧?
    Apr. 14
    Josephwrote:
    呵呵, bbs上看过了
    不过水平是提高了...期待下一题
    Apr. 14
    Di Changwrote:
    小钟老师生日又要到了耶
    Apr. 14
    Picture of Anonymous
    Altitude wrote:
    终于出现了新人物,不再是小明了,出题水平提高了,可喜可贺呀
    Apr. 14
    Juchang Huawrote:
    嫣红,你又调皮……
    Apr. 13

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