AMC8 1997

AMC8 1997 · Q18

AMC8 1997 · Q18. It mainly tests Percent, Rounding & estimation.

At the grocery store last week, small boxes of facial tissue were priced at 4 boxes for $5. This week they are on sale at 5 boxes for $4. The percent decrease in the price per box during the sale was closest to

上周杂货店，小盒面巾纸的价格是 4 盒 $5。本周特价 5 盒 $4。每盒价格在促销期间的百分比降幅最接近

(A) 30% 30%

(B) 35% 35%

(D) 45% 45%

(E) 65% 65%

Answer

Correct choice: (B)

正确答案：（B）

Solution

Answer (B): Last week one box cost \$1.25; this week one box costs \$0.80. The decrease, \$0.45, compared to original price of \$1.25, is a decrease of $\frac{0.45}{1.25}=0.36$ or 36%, so choice (B) is closest.

答案（B）：上周一盒的价格是 \$1.25；这周一盒的价格是 \$0.80。降价幅度为 \$0.45，相对于原价 \$1.25，降幅为 $\frac{0.45}{1.25}=0.36$，即 36%，所以选项（B）最接近。

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