一項數學挑戰
<P class=MsoNormal><B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold">一項數學挑戰</SPAN></FONT></B><FONT color=blue size=4 face=Arial><SPAN style="FONT-FAMILY: Arial; COLOR: blue; FONT-SIZE: 13.5pt"> </SPAN></FONT><B><FONT size=4 face="Times New Roman"><SPAN style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold" lang=EN-US><BR></SPAN></FONT></B><B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold" lang=EN-US><BR></SPAN></FONT></B><B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold">這是項數學挑戰！有這麼一種說法：<SPAN lang=EN-US> <BR></SPAN>你若是工程師，你應該可在三分鐘內（３０秒左右吧）解開這道題；你若是建築師，</SPAN></FONT></B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt"> <B><SPAN style="FONT-WEIGHT: bold" lang=EN-US><BR></SPAN>給你三小時；你若是醫生，給你六小時；你若是會計師，三個月吧</B></SPAN></FONT><B><FONT size=4 face="MS Mincho"><SPAN style="FONT-FAMILY: 'MS Mincho'; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold">∼</SPAN></FONT></B><B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt; FONT-WEIGHT: bold">假若你是律師，大概永遠也解不出來。</SPAN></FONT></B><FONT size=4 face=標楷體><SPAN style="FONT-FAMILY: 標楷體; FONT-SIZE: 13.5pt"> </SPAN></FONT><FONT color=blue face="Times New Roman"><SPAN style="FONT-FAMILY: 'Times New Roman'; COLOR: blue" lang=EN-US><BR></SPAN></FONT><FONT color=blue face=標楷體><SPAN style="FONT-FAMILY: 標楷體; COLOR: blue" lang=EN-US><BR></SPAN></FONT><FONT color=blue face=標楷體><SPAN style="FONT-FAMILY: 標楷體; COLOR: blue">請找出<SPAN lang=EN-US> "</SPAN>？<SPAN lang=EN-US>" </SPAN>格中的數字<SPAN lang=EN-US>, </SPAN>它即是開啟附件檔案的密碼．．．</SPAN></FONT><FONT color=blue face="Times New Roman"><SPAN style="FONT-FAMILY: 'Times New Roman'; COLOR: blue" lang=EN-US><BR></SPAN></FONT><FONT color=blue face=標楷體><SPAN style="FONT-FAMILY: 標楷體; COLOR: blue" lang=EN-US><BR>|---+----+----+------+------|<BR>| 2 | 3 | 4 | 15 | 12 |<BR>|---+----+----+------+------|<BR>| 3 | 4 | 5 | 28 | 20 |<BR>|---+----+----+------+------|<BR>| 4 | 5 | 6 | 45 | 30 |<BR>|---+----+----+------+------|<BR>| 5 | 6 | 7 | 66 | 42 |<BR>|---+----+----+------+------|<BR>| 6 | 7 | 8 | ? | 56 |<BR>|---+----+----+------+------|</SPAN></FONT><FONT face=標楷體><SPAN style="FONT-FAMILY: 標楷體" lang=EN-US> <B><FONT color=blue><SPAN style="COLOR: blue; FONT-WEIGHT: bold"><BR></SPAN></FONT></B></SPAN></FONT><B><FONT color=blue face=標楷體><SPAN style="FONT-FAMILY: 標楷體; COLOR: blue; FONT-WEIGHT: bold">答案就是密碼，可以打開附件檔案。<SPAN lang=EN-US><BR></SPAN>你若能順利解題，請將你的名字加上，存檔後再寄給你的朋友<SPAN lang=EN-US>^^</SPAN></SPAN></FONT></B><B><FONT color=blue size=2><SPAN style="COLOR: blue; FONT-SIZE: 10pt; FONT-WEIGHT: bold" lang=EN-US> </SPAN></FONT></B></P>
<P class=MsoNormal><B><FONT color=blue size=2><SPAN style="COLOR: blue; FONT-SIZE: 10pt; FONT-WEIGHT: bold" lang=EN-US></SPAN></FONT></B> </P>
<P class=MsoNormal><B><FONT color=blue size=2><SPAN style="COLOR: blue; FONT-SIZE: 10pt; FONT-WEIGHT: bold" lang=EN-US></SPAN></FONT></B><SPAN lang=EN-US><STRONG><FONT color=#0000ff size=2>[attach]1397[/attach]</FONT></STRONG></SPAN></P>