快樂男孩 wrote:超難的怎麼算都錯(恕刪) 貓 + 鼠 = 10 => 鼠 = 10 - 貓狗 + 貓 =24 => 狗 = 24 - 貓狗 + 鼠 = 20 =>(24 - 貓) + (10 - 貓) =>34 - 2隻貓 = 20 =>2隻貓 = 14 => 貓 = 7剩下的看你的智商了