Question

Luka 正在制作柠檬水，在学校募捐活动中出售。他的配方需要的水是糖的 $4$ 倍，糖是柠檬汁的二倍。他用了 $3$ 杯柠檬汁。他需要多少杯水？

Luka is making lemonade to sell at a school fundraiser. His recipe requires $4$ times as much water as sugar and twice as much sugar as lemon juice. He uses $3$ cups of lemon juice. How many cups of water does he need?

$6$

$8$

$12$

$18$

$24$

答案：E

知识点：比与比例

难度评级：370

视频讲解：

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文字解答：

糖是柠檬汁的二倍，所以需要 $2\cdot3=6$ 杯糖。水是糖的 $4$ 倍，所以需要 $4\cdot6=24$ 杯水。

正确答案是 E。

Since Luka needs twice as much sugar as lemon, he needs $2\cdot3=6$ cups of sugar. Since Luka also needs $4$ times as much water as sugar, he needs $4\cdot6=24$ cups of water.

Thus, the correct answer is E.

2020 AMC 8 第 1 题

答案：E

难度评级：370

视频讲解：

文字解答：

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