2025 AMC 10B 第 1 题

Question

一袋

350

克的咖啡豆说明上写着：正确冲泡一大杯手冲咖啡需要

20

克咖啡豆。用这袋咖啡豆最多可以正确冲泡多少大杯咖啡？

The instructions on a

350

-gram bag of coffee beans say that proper brewing of a large mug of pour-over coffee requires

20

grams of coffee beans. What is the greatest number of properly brewed large mugs of coffee that can be made from the coffee beans in that bag?

16

17

18

19

20

每杯需要

20

克，所以把咖啡豆总质量除以

20

。

Each mug uses

20

grams, so divide the total mass by

20

不完整的一杯不能算一杯，所以要把

\frac{350}{20}

向下取整。

A partial mug does not count, so round

\frac{350}{20}

down to a whole number

每杯需要

20

克，因此

\frac{350}{20} = 17.5

。半杯不能算作一杯，所以向下取整，最多能冲泡

17

大杯，正确答案是 B。

Each mug needs

20

grams, so we divide:

\frac{350}{20} = 17.5.

A half mug isn’t a mug, so round down. That leaves

17.

Thus, B is the correct answer.

其他年份的第 1 题