2013 AMC12A 真题

🗓 2013-11-05 📁 AMC 🏷️ 2013 AMC12A AMC 📄 PDF 📦 477.54KB

2013 AMC12A

Problem 1

Square has side length . Point is on , and the area of is . What is ?

正方形 ABCD 的边长为 10 ,点 E 在 BC 上, 的面积为 40 ,问 BE 的长是多少 ?

(A) 4 (B) 5 (C) 6 (D) 7 (E) 8

Problem 2

A softball team played ten games, scoring , and runs. They lost by one run in exactly five games. In each of the other games, they scored twice as many runs as their opponent. How many total runs did their opponents score?

一支垒球队打了 10 场比赛,得分为 , , , , , , , , 和 1 2 3 4 5 6 7 8 9 10 分,其中恰好 场比 5 赛比对手少 分,在其他 场比赛中,得分是对手分数的 倍。那么他们的对手总共得分是 1 5 2 多少 ?

(A) 35 (B) 40 (C) 45 (D) 50 (E) 55

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