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ZX-4B5F5A75CE2026年8月国际A卷 · 第 20 题
2026年8月国际A卷 · 原库模块 2 · Q20 参考答案
A scientist studied the effects of mixing two chemicals, chemical A and chemical B, by gradually adding more of each chemical to a mixture of the two chemicals. At the start of the study, the mass of chemical A in the mixture was equal to the mass of chemical B in the mixture. From the start of the study to the end of the study, the mass of chemical A in the mixture increased by 2,400% and the mass of chemical B in the mixture increased by 280%. At the end of the study, the mass of chemical A in the mixture was approximately how many times as great as the mass of chemical B in the mixture?
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