2011 AMC 8 第 1 题

先试着解答 2011 AMC 8 第 1 题,然后核对你的答案与精心整理的解答,解答来自 LIVE by Po-Shen Loh。你也可以参加完整限时模拟考试、查看全部 2011 AMC 8 解答,或核对答案。

所有题目均经美国数学协会(MAA)官方合法授权使用。

1.

Margie 买了 33 个苹果,每个苹果 5050 美分。她用一张 55 美元纸币付款。Margie 收到多少找零?
Margie bought 33 apples at a cost of 5050 cents per apple. She paid with a 55-dollar bill. How much change did Margie receive?
$1.50\$1.50
$2.00\$2.00
$2.50\$2.50
$3.00\$3.00
$3.50\$3.50
答案:E
知识点:钱币
小提示:
从五美元中减去苹果的花费
Subtract the apple cost from five dollars.
大提示:
先求苹果总共花了多少钱
Find the total cost of the apples first.
解答:
苹果总共花了 3⋅50=1503 \cdot 50 = 150 美分,也就是 $1.50\$1.50。因此 Margie 收到的找零是 $5.00−$1.50=$3.50\$5.00-\$1.50=\$3.50。
所以正确答案是 E。
The apples cost a total of 3⋅50=1503 \cdot 50 = 150 cents, which equals $1.50.\$1.50. This means that Margie received $5.00−$1.50=$3.50\$5.00-\$1.50=\$3.50 in change.
Thus, E is the correct answer.
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