[計量] 請教 BB p.292 No.28

看板GRE (GRE入學考試)作者 (他哭桑)時間16年前 (2010/06/01 23:25), 編輯推噓0(000)
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By weight, liquid A makes up 7.0 percent of solution I and 14.5 percent of solution II. If 3 grams of solution I is mixed with 2 grams of solution II, then liguid A accounts for what percent of the weight of the resulting solution? (A)6.09% (B)10% (C)10.75% (D)21.5% (E)50% 答案是 (B) 這題我有點看不懂題目的題意 所以也不知道怎麼列式 可否請各位版上的大大賜教XDDD 感謝先!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.129.38.118
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