Question

Misty Moon Amphitheater 的每一排有 $33$ 个座位。第 $12$ 排到第 $22$ 排预留给一个青年俱乐部。这个俱乐部一共预留了多少个座位？

Each row of the Misty Moon Amphitheater has $33$ seats. Rows $12$ through $22$ are reserved for a youth club. How many seats are reserved for this club?

$297$

$330$

$363$

$396$

$726$

答案：C

知识点：区间内整数计数基本计数

难度评级：770

解答：

第 $12$ 排到第 $22$ 排共有 $22 - 12 + 1 = 11$ 排。

每排有 $33$ 个座位，所以总数为 $33 \times 11 = 363$ 。

所以正确答案是 C。

Rows $12$ through $22$ inclusive make up $22 - 12 + 1 = 11$ rows.

Each row has $33$ seats, so the total is $33 \times 11 = 363.$

Thus, the correct answer is C.

2004 AMC 10B 第 1 题

答案：C

难度评级：770

解答：

其他年份的第 1 题