AMC8 1998

AMC8 1998 · Q9

AMC8 1998 · Q9. It mainly tests Percent.

For a sale, a store owner reduces the price of a $10 scarf by 20%. Later the price is lowered again, this time by one-half the reduced price. The price is now

店主为促销将一条 10 美元的围巾降价 20%。后来价格再次降低，这次是降低已降价的一半。现在的价格是

(A) $2.00 $2.00

(B) $3.75 $3.75

(D) $4.90 $4.90

(E) $6.40 $6.40

Answer

Correct choice: (C)

正确答案：（C）

Solution

First: $10 - 0.2(10) = 8$. Second: $8 - 0.5(8) = 4$. Or 40% of original: $0.4(10)=4$.

第一次：$10 - 0.2(10) = 8$。第二次：$8 - 0.5(8) = 4$。或原价的 40%：$0.4(10)=4$。

Topics

AR.003 Percent