有关数学题的语法知识请教

xuyuanwai · 发表于 2012-10-5 21:40:00

Hi,

今天在做OG数学题时，遇到了这样两个语句。
（1）Point R is twice as far from P as from Q.

请问，为什么讲解理解为：R到Q的距离是R到P的两倍？

（2）PS 151题
A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sale, what would be the lowest possible price of a toy costing $16 before any discount?

疑问：before any discount究竟修饰哪个成分呢？

静候大侠的解答。

有关数学题的语法知识请教

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