Question

Ajax 折扣店的促销价比原价低 $50\%$ 。周六在促销价基础上再打 $20\%$ 折扣。一件原价 $180 的外套周六价格是多少？

Sale prices at the Ajax Outlet Store are $50\%$ below original prices. On Saturdays an additional discount of $20\%$ off the sale price is given. What is the Saturday price of a coat whose original price is $180?

$54

$72

$90

$108

$110

答案：B

知识点：百分数

难度评级：860

解答：

促销价是 $\$180$ 的 $50\%$ ，即 $\$90$ 。周六价格再减 $20\%$ ，留下 $\$90$ 的 $80\%$ ，即 $\$72$ 。

所以正确答案是 B。

The sale price is $50\%$ of $\$180,$ or $\$90.$ The Saturday price takes another $20\%$ off, leaving $80\%$ of $\$90,$ which is $\$72.$

Thus, the correct answer is B .

1986 AMC 8 第 15 题

答案：B

难度评级：860

解答：

其他年份的第 15 题