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?

$16$

$17$

$18$

$19$

$20$

答案：B

知识点：取整函数

难度评级：860

解答：

每杯需要 $20$ 克，因此 $350 / 20 = 17.5$ 。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: $350 / 20 = 17.5.$ A half mug isn't a mug, so round down. That leaves $17.$ Thus, B is the correct answer.

2025 AMC 10B 第 1 题

答案：B

难度评级：860

解答：

其他年份的第 1 题