An interesting puzzle

via Richard Wiseman’s blog

Can you take the clock face below, and cut it into four pieces such that the numerals on each part add up to the same number?

clock1

So, for example, this solution would not work because the numbers on the four pieces add up to different amounts….

clock2

I like this puzzle! You may think it is easy for several times, only to find yourself such an idiot soon.

You can vote on the original post if you need a hint.

Happy Friday!

By the way, can anyone tell me how I can activate the ibus input method on Ubuntu 9.10??

以下文章也许和本文有点关系:

那年今天:

3条留言 跳到评论框

  1. funphy
    发表于September 25, 2009 4:59 AM | 永久链接

    1+2+…+12 = 78;
    78 mod 4 = 2;
    所以必须有数字要拆开,里面拆开后大小会改变的只有IX,拆开后所有数字和为80,所以分成每块为20;
    另外4写成IIII而不是IV,应该也是方便于拆分。。。
    所以。。。
    如果线可以曲折的话^_^
    XII I II III II @ II V VI VII @ VIII I XI @ X X

    [回复这条留言]

    azalea

    回复于September 25, 2009 8:43 AM

    貌似4两种写法都可以。。
    我和你拆的不一样,我没拆4,不过殊途同归啦

    [回复这条留言]

    funphy

    回复于September 25, 2009 10:56 AM

    google了一下,clock上貌似都是用的IIII,我土了-_-。。。

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    azalea

    回复于September 25, 2009 12:45 PM

    我也特意去Google了下,也有用IV的,比如
    http://www.1worldglobes.com/1WorldGlobes/Old-World-Clock.gif
    http://www.clock-desktop.com/screens/sprinkle_clock/sprinkle-clock-01.jpg

    [回复这条留言]

  2. sdpfoue
    发表于September 25, 2009 5:24 AM | 永久链接

    这个题目很tricky

    [回复这条留言]

  3. lemon
    发表于September 25, 2009 8:50 AM | 永久链接

    哎呀,罗马数字都看晕了,阿拉伯数字倒是好分很多啊~

    [回复这条留言]

    azalea

    回复于September 25, 2009 8:53 AM

    呵呵,阿拉伯数字的话我还真不知道怎么分。。

    [回复这条留言]

    lemon

    回复于September 25, 2009 9:08 AM

    10,1+1,1+2||1,2,3,9||4,5,6||7,8
    嘿嘿,罗马数字还是分法多些

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    azalea

    回复于September 25, 2009 12:45 PM

    赞!

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    sdpfoue

    回复于September 25, 2009 7:41 PM

    另外这个是可以画浪线的啊 -_-|||

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    sdpfoue

    回复于September 25, 2009 7:40 PM

    阿拉伯数字应该是无解的

    [回复这条留言]

    sdpfoue

    回复于September 25, 2009 7:45 PM

    阿拉伯11 12也能拆。。。看了前面的还说无解
    这脑袋真是秀逗了

    [回复这条留言]

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