Arithmetic Reasoning第 4 / 120 题
A recipe uses flour and sugar in a ratio of 3 to 1. If you use 9 cups of flour, how many cups of sugar are needed?
a.1 cup
b.6 cups
c.12 cups
d.3 cups
解析
The ratio 3 to 1 means three parts flour for every one part sugar. Since 9 cups of flour is three times the base part of 3, the sugar is also tripled from 1 to 3 cups. Ratios scale both quantities by the same factor.
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