[計量] 問一題數學
取自BB TEST7 section4 第28題
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 liquid A accounts for
what percent of the weight of the resulting solution ?
ANS: 10%
我不管怎麼湊都算不出這個答案 囧
感謝呀~~
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05/30 22:33, , 1F
05/30 22:33, 1F
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