Question

Alice 正在做一批饼干，需要 $2\frac{1}{2}$ 杯糖。可惜她的量杯每次只能装 $\frac{1}{4}$ 杯糖。她必须装满这个量杯多少次，才能得到所需的糖量？

Alice is making a batch of cookies and needs $2\frac{1}{2}$ cups of sugar. Unfortunately, her measuring cup holds only $\frac{1}{4}$ cup of sugar. How many times must she fill that cup to get the correct amount of sugar?

$8$

$10$

$12$

$16$

$20$

答案：B

知识点：分数

难度评级：560

解答：

Alice 需要 $2\frac12=\frac52$ 杯糖。

每次量杯装 $\frac14$ 杯，所以需要 $\frac52\div\frac14=\frac52\cdot4=10$ 次。

所以正确答案是 B。

Alice needs $2\frac12=\frac52$ cups of sugar.

Each full measuring cup gives $\frac14$ cup, so the number of fillings is $\frac52\div\frac14=\frac52\cdot4=10$ .

Thus, B is the correct answer.

2013 AMC 10A 第 2 题

答案：B

难度评级：560

解答：

其他年份的第 2 题