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例1. (2019年山东省公务员考试《行政职业能力测验》第55题)某老旧写字楼重新装修,需要将原有的窗户全部更换为每扇90元的新窗户.已知每7扇换下来的旧窗户可以跟厂商兑换一个新窗户.全部更换完后共花费16560元,且剩余4个旧窗户没有兑换,那么该写字楼一共有多少扇窗户?
挑战2019年公务员考试题年公务员考试题
【摘 要】
：
例1. (2019年山东省公务员考试《行政职业能力测验》第55题)某老旧写字楼重新装修,需要将原有的窗户全部更换为每扇90元的新窗户.已知每7扇换下来的旧窗户可以跟厂商兑换一个
【机 构】
：
江苏省张家港市常阴沙学校
【出 处】
：
数学小灵通（3-4年级）
【发表日期】
：
2020年1期
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