[計量] 請問一提PS
A mixture of lime paint consists of 4 parts green paint and 3 parts of yellow paint. If the green paint consists of 25% yellow paint, than yellow is what fraction of the ilme paint?
A)3/9
B)3/7
C)4/7
D)3/4
E)38/35
題目的意思不是很懂耶
光是看油漆=4綠+3黃
我就很想選3/7.....
不知道那個25%要怎麼使用呢?
期待各位指教~
註:答案未知
謝謝!
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