[問卦] 這題國中數學有多少大學生不會解的八卦?消失
阿公在田園養了雞與豬,
已知雞與豬的總數量為63隻,
母雞的數量是公雞的三倍,
公豬的數量比公雞少7隻。
某天阿公宴客,打算只留下公雞母雞各一隻,公豬與母豬也各一隻,
其餘全送去料理,料理出滷雞爪92隻,請問滷豬腳有幾隻?
問身邊的同事(都有大學畢業), 樣本數13, 只有4個人會.
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