AMC8 2003

AMC8 2003 · Q11

AMC8 2003 · Q11. It mainly tests Percent, Arithmetic misc.

Business is a little slow at Lou’s Fine Shoes, so Lou decides to have a sale. On Friday, Lou increases all of Thursday’s prices by 10%. Over the weekend, Lou advertises the sale: “Ten percent off the listed price. Sale starts Monday.” How much does a pair of shoes cost on Monday that cost $40 on Thursday?

Lou’s Fine Shoes 的生意有点清淡，所以 Lou 决定搞促销。周五，Lou 将周四的所有价格提高 10%。周末，Lou 广告促销：“标价九折。促销从周一开始。”一双周四价格为 $40 的鞋子，周一多少钱？

(A) $36 $36

(B) $39.60 $39.60

(D) $40.40 $40.40

(E) $44 $44

Answer

Correct choice: (B)

正确答案：（B）

Solution

(B) Thursday’s price of \$40 is increased 10% or \$4, so on Friday the shoes are marked \$44. Then 10% of \$44 or \$4.40 is taken off, so the price on Monday is \$44 - \$4.40 = \$39.60.

（B）周四的价格\$40上涨了10%，即\$4，因此周五鞋子标价为\$44。然后从\$44中打九折（减去10%），即减\$4.40，所以周一的价格为\$44 - \$4.40 = \$39.60。

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