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歡迎您訪問(wèn)數(shù)學(xué)考題練習(xí):有A、B、C、D四位員工做一項(xiàng)工作,每天必須是!

數(shù)學(xué)考題練習(xí):有A、B、C、D四位員工做一項(xiàng)工作,每天必須是

更新時(shí)間:2024-01-12 16:36:06作者:貝語(yǔ)網(wǎng)校

有A、B、C、D四位員工做一項(xiàng)工作,每天必須是三位員工同時(shí)做,另一位員工休息,當(dāng)完成這項(xiàng)工作時(shí),D做了8天,比其他任何人都多,B做了5天,比其他任何人都少,那么A做了________天.

試題答案

7

試題解析

由D做了8天最多,B做了5天最少知A做的天數(shù)5<x<8,且四位員工工作天數(shù)和應(yīng)該是3的倍數(shù),所以A做7天.

解答:∵D做了8天最多,B做了5天最少,

∴A做的天數(shù)5<x<8,

∵每天必須是三位員工同時(shí)做,

∴四位員工工作天數(shù)和應(yīng)該是3的倍數(shù),

∴x的值應(yīng)該是27,

即A、C都工作了7天.

故應(yīng)填7.

點(diǎn)評(píng):本題考查了不等式的有關(guān)的知識(shí)和學(xué)生的邏輯思維能力,是一道不錯(cuò)的題目.

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