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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 
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時鐘 時針與分針夾角列出二元一次聯立方程式
Aug 19th 2013, 06:14

(1) x=12y  (因為分針走60小格, 時針走5小格)
x-(5+y)=45 (1時時, 時針是在第5小格, 分針是在第0小格,
15不合分針所指數字大於6)

(2)  x-(5+y)=45
12y-5-y=45
11y=50
    y=50/11  --> x=600/11

   Ans: 下午1 時600/11分

參考資料 Paul

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