AMC10 2004 B

AMC10 2004 B · Q1

AMC10 2004 B · Q1. It mainly tests Averages (mean), Arithmetic misc.

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?

Misty Moon Amphitheater 每排有 33 个座位。第 12 到 22 排是为一个青年俱乐部预留的。这个俱乐部预留了多少座位？

(A) 297 297

(B) 330 330

(D) 396 396

(E) 726 726

Answer

Correct choice: (C)

正确答案：（C）

Solution

There are $22 - 12 + 1 = 11$ reserved rows. Because there are 33 seats in each row, there are $(33)(11) = 363$ reserved seats.

有 $22 - 12 + 1 = 11$ 排预留座位。因为每排有 33 个座位，所以总共有 $(33)(11) = 363$ 个预留座位。

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