問題詳情
12. 有甲、乙兩個大小不同的水桶,容量分別為 x、y 公升,且已各裝一些水。若將甲中的水全倒入乙後,乙只可再裝 20 公升的水;若將乙中的水倒入甲,裝滿甲水桶後,乙還剩 10 公升的水,則 x、y 的關係為何?
(A) y=20-x
(B) y=x+10
(C) y=x+20
(D) y=x+30
(A) y=20-x
(B) y=x+10
(C) y=x+20
(D) y=x+30
參考答案
無參考答案
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