Re: [計量] 請教一題
※ 引述《oogu (a Who)》之銘言：
: A manufacturer packages soap powder in containers of three different sizes.
: The amount of soap powder in a full large container could fill exactly 3 of
: the medium containers or 5 of the small containers. If an equal number of
: small and large containers are to be filled with the amount of soap powder
: that would fill 90 medium containers, how many small containers will be
: filled?
: A) 25
: B) 27
: C) 30
: D) 45
: E) 54
: 答案 A。這題要如何解？請高手指點！
大中小 三種包裝 可裝的比例是 15:5:3
現在有中的90包
可以裝成 數量同的大小包裝
假設大小包裝各 x包 可裝的容量
15x+3x=90*5
x=25
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