ONE QUESTION, ONE STEP
ZX-1EF5276EFFPSAT 8/9 P1 · 第 11 题
PSAT 8/9 P1 · 原库模块 2 · Q11 原库参考解析
In a box of pens, the ratio of black pens to red pens is 8 to 1. There are 40 black pens in the box. How many red pens are in the box?
参考答案：
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ONE QUESTION, ONE STEP
ZX-1EF5276EFFPSAT 8/9 P1 · 原库模块 2 · Q11 原库参考解析
In a box of pens, the ratio of black pens to red pens is 8 to 1. There are 40 black pens in the box. How many red pens are in the box?
参考答案：
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