Question

一个童子军小队以每五根 $\$2$ 的价格买了 $1000$ 根糖果棒。他们又以每两根 $\$1$ 的价格把所有糖果棒卖出。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：钱币比与比例

难度评级：880

解答：

小队购买 $1000 \div 5 = 200$ 组五根糖果棒，花费 $200 \cdot 2 = 400$ 美元。

他们卖出 $1000 \div 2 = 500$ 组两根糖果棒，收入 $500 \cdot 1 = 500$ 美元。

利润为 $\$500 - \$400 = \$100$ 。

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 $\$500 - \$400 = \$100.$

Thus, A is the correct answer.

2005 AMC 10B 第 1 题

答案：A

难度评级：880

解答：

其他年份的第 1 题