史上最难的三个趣味数学题！(脑子灵光的请进！)

Vongchong

<P>

原帖由 <I>夏秋冬</I> 于 12.9.2007 22:07 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435592&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 6/（5/4-1）=24 &nbsp; 出几个经典的，知道答案的就不要说了，不知道的可以做一下 &nbsp; 4 4 10 10 1 5 5 5 3 3 7 7 3 7 9 K 3 3 8 8 &nbsp; 没奖励，玩玩吧

</P>
<P>&nbsp;</P>
<P>1&nbsp; 1&nbsp;&nbsp; 5&nbsp;&nbsp; 5</P>
<P>no result</P>
<P>&nbsp;</P>
<P>3&nbsp; 3&nbsp; 7&nbsp; 7</P>
<P>(3/7+3)*7</P>

Vongchong

K是13么？ :surrender:

雨丝

麻烦有答案的编辑在一楼~~~~~~~

kangson

<P>

原帖由 <I>夏秋冬</I> 于 12.9.2007 23:15 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435745&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 用计算机是很容易，编程也很需要脑子，不过这么一来不就少了很多乐趣？就四个数，加减乘除，直接动脑筋也不算很难吧。24点牌戏不是为了程序应用而诞生的。

</P>
<P>四个数字，中间有三个符号，每个符号有加减乘除四种法则</P>
<P>四个数字总的排列组合有4！种情况，即4*3*2*1</P>
<P>三个符号，每个符号4中法则，所以有 4^3=64种可能，</P>
<P>所以总共的可能性为24*64种可能，用脑子想还是满难得</P>

kangson

<P>

原帖由 <I>Vongchong</I> 于 12.9.2007 23:34 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435790&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 1&nbsp; 1&nbsp;&nbsp; 5&nbsp;&nbsp; 5 no result&nbsp;&nbsp;

</P>
<P>1&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 5&nbsp; 5 </P>
<P>5*5*1-1&nbsp;</P>

AlterWerther

看来科学技术还是先进生产力。。。

kangson

<P>

原帖由 <I>夏秋冬</I> 于 12.9.2007 22:07 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435592&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 6/（5/4-1）=24 &nbsp; 出几个经典的，知道答案的就不要说了，不知道的可以做一下 &nbsp; 4 4 10 10 1 5 5 5 3 3 7 7 3 7 9 K 3 3 8 8 &nbsp; 没奖励，玩玩吧

</P>
<P>&nbsp;</P>
<P>3 3 8 8， 应该无解！</P>

Vongchong

咱们处这么经典的题，都没有给分呢！

白出了！

雨丝

标准答案在哪呢～～～～～～

夏秋冬

<P>

原帖由 <I>Vongchong</I> 于 12.9.2007 23:34 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435790&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 1&nbsp; 1&nbsp;&nbsp; 5&nbsp;&nbsp; 5 no result&nbsp;&nbsp;

</P>
<P>&nbsp;</P>
<P>是1 5 5 5</P>
<P>&nbsp;</P>
<P>

原帖由 <I>Vongchong</I> 于 12.9.2007 23:34 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1435792&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> K是13么？ <IMG alt="" src="http://www.kaiyuan.de/forum/images/smilies/Surrender.gif" border=0 smilieid="48">

</P>
<P>&nbsp;</P>
<P>是</P>
<P>&nbsp;</P>
<P>

原帖由 <I>kangson</I> 于 13.9.2007 14:40 发表 <A href="http://www.kaiyuan.de/forum/redirect.php?goto=findpost&amp;pid=1436466&amp;ptid=197968" target=_blank><IMG onmousewheel="return imgzoom(this);" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" alt="" src="http://www.kaiyuan.de/forum/images/common/back.gif" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" border=0></A> &nbsp; 3 3 8 8， 应该无解！

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<P>&nbsp;</P>
<P>有的</P>