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GMAT数学练习题及答案解析

更新时间:2017-06-10 编辑:知乎者也 阅读:0 来源: 聚培训整理

导读:  GMAT数学练习题及答案解析!一起来了解一下下面聚培训为大家分享的GMAT数学练习题目吧。更多GMAT备考经验及备考资料,欢迎关注聚培训GMAT栏目。  1、Three grades ofmilk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of the 1 percent grade, ygallons of the 2 percent grade, and z gallons of the 3 percent grade are mixedt

    GMAT数学练习题及答案解析!一起来了解一下下面聚培训为大家分享的GMAT数学练习题目吧。更多GMAT备考经验及备考资料,欢迎关注聚培训GMAT栏目。

    1、Three grades ofmilk are 1 percent, 2 percent, and 3 percent fat by volume. If x gallons of the 1 percent grade, ygallons of the 2 percent grade, and z gallons of the 3 percent grade are mixedto give x + y + z gallons of a 1.5 percent grade, what is x in terms of y and z?

    (A) y + 3z

    (B) (y + z) /4

    (C) 2y + 3z

    (D) 3y + z

    (E) 3y + 4.5z

    答案 A

    题目翻译:三种牛奶分别含有 1%,2%,3%的脂肪。如果把 X 加仑的 1%牛奶,Y 加仑的2%牛奶,Z 加仑的 3%牛奶混合,最后混合的牛奶含有 1.5%的脂肪,那么用 Y 和 Z 怎么表示 X?

    思路点拔:1%X+2%Y+3%Z=1.5%(X+Y+Z) 题目全解:X=Y+3Z,A

    2、  A furniture dealer purchased a desk for$150 and then set the selling price equal to the purchase price plus a markupthat was

    40 percent of theselling price. If the dealer sold thedesk at the selling price, what was the amount of the dealer's gross profitfrom the purchase and the sale of the desk?

    (A) $40

    (B) $60

    (C) $80

    (D) $90

    (E) $100

    答案 100

    题目翻译:一个家具商花 150 块钱买了一个桌子,然后把价格定为(买进价格+卖价的 40%)。如果这桌子卖出去了,那么这个商人的毛利是多少? 思路点拔:毛利=收入-成本

    题目全解:假设卖价为 X,则加价部分为 0.4X,则买进价格=0.6X=150,求出 X=250。毛利=250-150=100。

1

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