Question

一个童子军小队以每五条 $\$2$ 的价格买入 $1000$ 条糖果棒。他们再以每两条 $\$1$ 的价格全部卖出。他们的利润是多少美元？

A scout troop buys $1000$ candy bars at a price of five for $\$2.$ They sell all the candy bars at a price of two for $\$1.$ What was their profit, in dollars?

$100$

$200$

$300$

$400$

$500$

答案：A

知识点：比与比例钱币

难度评级：890

解答：

小队买入 $1000 \div 5 = 200$ 组五条装糖果棒，成本为 $200 \cdot 2 = 400$ 美元。

他们卖出 $1000 \div 2 = 500$ 对糖果棒，收入为 $500 \cdot 1 = 500$ 美元。

利润为 $500 - 400 = 100$ 美元。

所以正确答案是 A。

The troop buys $1000 \div 5 = 200$ groups of five bars, costing $200 \cdot 2 = 400$ dollars.

They sell $1000 \div 2 = 500$ pairs of bars, earning $500 \cdot 1 = 500$ dollars.

The profit is $500 - 400 = 100$ dollars.

Thus, the correct answer is A.

2005 AMC 12B 第 1 题

答案：A

难度评级：890

解答：

其他年份的第 1 题