AMC 8 1995 Problem 3

AMC8 1995 年第 3 题

比与比例★★☆☆☆

Problem Which of the following operations has the same effect on a number as multiplying by $3/4$ and then dividing by $3/5$?

以下哪种运算对一个数的效果与先乘以 $3/4$ 再除以 $3/5$ 相同？

A. $\text{dividing by }\dfrac{4}{3}$
B. $\text{dividing by }\dfrac{9}{20}$
C. $\text{multiplying by }\dfrac{9}{20}$
D. $\text{dividing by }\dfrac{5}{4}$
E. $\text{multiplying by }\dfrac{5}{4}$

正确答案 · Correct Answer

E

解析 · Solution

解析整理中

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