AMC8 2018

AMC8 2018 · Q1

AMC8 2018 · Q1. It mainly tests Ratios & proportions, Rounding & estimation.

An amusement park has a collection of scale models, with ratio 1:20, of buildings and other sights from around the country. The height of the United States Capitol is 289 feet. What is the height in feet of its replica at this park, rounded to the nearest whole number?

一个游乐园有一系列比例为 1:20 的建筑物和其他景点的比例模型。美国国会大厦的高度是 289 英尺。这个公园里的复制品高度是多少英尺，四舍五入到最近的整数？

(A) 14 14

(B) 15 15

(D) 18 18

(E) 20 20

Answer

Correct choice: (A)

正确答案：（A）

Solution

Answer (A): The height of the replica is $\frac{289}{20}=14.45$ feet, so the answer is 14 feet when rounded to the nearest whole number.

答案（A）：该复制品的高度为$\frac{289}{20}=14.45$英尺，因此四舍五入到最接近的整数时，答案是14英尺。

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