📐 MathLevel 9 — 🔵 Intermediateinverse_proportion👁 14 views⏱ 1 min read
解题 4 人完成工作需 6 天。10 人完成需几天？（反比例） — 详细解答步骤
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4 人完成工作需 6 天。10 人完成需几天？（反比例）✨Detailed Solution
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