A toy store regularly sells all stock at a discount of20 percent to 40 percent. If an additional 25 percentwere deducted from the discount price during aspecial sale, what would be the lowest possible priceof a toy costing $16 before any discount? 那题目最后的before any discount是怎么回事儿？感觉是：一个价值16美圆的玩具在没有任何折扣 之前最低的价格是多少？ 但是答案每个都比16美元少啊？？
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发表于 2010-10-11 18:14:28
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