2011 AMC 8 第 1 题

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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
难度评级:370
解答:

苹果总共花了 350=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 350=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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