Question

一栋房屋和一家商店分别以 $\$12000$ 售出。房屋的售价比成本低 $20\%$ ，商店的售价比成本高 $20\%$ 。整个交易的结果是：

A house and store were sold for $\$12000$ each. The house was sold at a loss of $20\%$ of the cost, and the store at a gain of $20\%$ of the cost. The entire transaction resulted in:

不赚不赔

No loss or gain

亏损 $\$1000$

Loss of $\$1000$

获利 $\$1000$

Gain of $\$1000$

获利 $\$2000$

Gain of $\$2000$

以上答案均不正确

None of these

答案：B

知识点：百分数钱币

难度评级：1310

小提示：

分别由两件资产的售价反求原成本

Recover each original cost from its selling price separately

大提示：

房屋售价为成本的 $80\%$ ，商店售价为成本的 $120\%$

The house sold for $80\%$ of cost, while the store sold for $120\%$ of cost

解答：

房屋成本为 $\frac{12000}{0.8}=15000$ 美元，商店成本为 $\frac{12000}{1.2}=10000$ 美元。总成本为 $25000$ 美元，总售价为 $24000$ 美元，因此亏损 $1000$ 美元。

因此，正确答案是 B。

The house cost $\frac{12000}{0.8}=15000$ dollars, and the store cost $\frac{12000}{1.2}=10000$ dollars. The combined cost was $25000$ dollars, while the combined selling price was $24000$ dollars, producing a loss of $1000$ dollars.

Thus, the correct answer is B.

1952 AMC 12 第 14 题

答案：B

难度评级：1310

小提示：

大提示：

解答：

其他年份的第 14 题