AMC8 1990

AMC8 1990 · Q5

AMC8 1990 · Q5. It mainly tests Decimals, Rounding & estimation.

Which of the following is the closest to the product $(.48017)(.48017)(.48017)$?

下列哪一个最接近于乘积 $(.48017)(.48017)(.48017)$？

(A) 0.011 0.011

(B) 0.110 0.110

(D) 11.0 11.0

(E) 110 110

Answer

Correct choice: (B)

正确答案：（B）

Solution

The desired product is about $\frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2} = \frac{1}{8} = 0.125$.

所需的乘积大约是 $\frac{1}{2} \cdot \frac{1}{2} \cdot \frac{1}{2} = \frac{1}{8} = 0.125$。

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