2005 AMC 12B 第 1 题
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所有题目均经美国数学协会（MAA）官方合法授权使用。
1.
一个童子军小队以每五条 的价格买入 条糖果棒。他们再以每两条 的价格全部卖出。他们的利润是多少美元？
A scout troop buys candy bars at a price of five for They sell all the candy bars at a price of two for What was their profit, in dollars?
小提示：
分别求总成本和总收入。
Find the total cost and the total revenue separately
大提示：
买入时有 组五条，卖出时有 对。
There are groups of five bought and pairs sold
解答：
小队买入 组五条装糖果棒，成本为 美元。
他们卖出 对糖果棒，收入为 美元。
利润为 美元。
所以正确答案是 A。
The troop buys groups of five bars, costing dollars.
They sell pairs of bars, earning dollars.
The profit is dollars.
Thus, the correct answer is A.
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