[計量] 新版OG題目
In a graduating class of 236 students, 142tooks algebra and 121took chemistry.
when is the greatest possible numbers of students that could have taken both
algebra and chemistry.
答案是121 但是我的想法是 236=142+121-(代數跟數學重複的部分)
因為我把greatest possible number翻成最有可能的數量
可是如果是121感覺是要翻成最大數量
是我題意搞錯了嗎?
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