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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