Question

一个水壶中装满了其容量的四分之三的菠萝汁。把水壶倒空，平均倒入 $5$ 个杯子中。每个杯子得到的菠萝汁占水壶总容量的百分之多少？

Three fourths of a pitcher is filled with pineapple juice. The pitcher is emptied by pouring an equal amount of juice into each of $5$ cups. What percent of the total capacity of the pitcher did each cup receive?

$5$

$10$

$15$

$20$

$25$

答案：C

知识点：分数百分数

难度评级：720

视频讲解：

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文字解答：

一开始水壶中有 $\dfrac{3}{4}$ 的容量，也就是： $\dfrac{1}{5}\cdot\dfrac{3}{4}=\dfrac{3}{20}=15\%.$

现在平均倒入个杯子，所以每个杯子得到的五分之一。因此每杯得到正确答案是 C。

Each cup receives one fifth of the $\dfrac{3}{4}$ of a pitcher, or $\dfrac{1}{5}\cdot\dfrac{3}{4}=\dfrac{3}{20}=15\%.$

Thus, the correct answer is C.

2020 AMC 8 第 5 题

答案：C

难度评级：720

视频讲解：

文字解答：

其他年份的第 5 题