【新年预警】2016年GRE数学5大易错题解析

小站整理2015-02-13 19:51:36

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摘要：下面是小编为大家搜索整理的有关备考新gre数学十大易错题型解析的后五个题型，大家在备考新gre数学考试时可以根据以下所提到的易错题型为自己查漏补缺，从而全面掌握新GRE数学考试。

下面是小编为大家搜索整理的有关备考新gre数学十大易错题型解析的后五个题型，大家在备考新gre数学考试时可以根据以下所提到的易错题型为自己查漏补缺，从而全面掌握新GRE数学考试。

新gre数学十大易错题型6

f the positive integers that are multiples of 30 and are less than or equal to 360,what fraction are multiples of 12?

a.1/6 b.1/5 c.1/3 d.2/5 e.1/2

首先这道题我是对multilples of ....不大明白,这是什么意思啊?其次这道题怎么解呢?

在小于360的30的公倍数中,也是12的公倍数的占多少?30N≤360, 得N≤12,所以共有12个数满足题干.

又12与30的最小公倍数为60,其实此题是求是60的倍数又小于等于360所占比例,同理求出为6

所以,6/12=答案E

新gre数学十大易错题型7
A certain teacher has a total ofat least 110 students enrolled in her classes.if the teachers has anaverage (arithmetic mean) of exactly 27 students enrolled per class.what is the least possible number of classes that the teacher couldhave?

a.3 b.4 c.5 d.6 e.7

我觉得这道题就是用110除以27就好了,可是答案是选c的

110/27=4.04,如果是4个班，那么总人数为108，还剩2个。当然是5个班了。

新gre数学十大易错题型8
A delivery service charges $0.02 per ounce for the first 16 ounces ofa shipment and $0.15 for each additional ounce of theshipment,(1pound=16ounce)

the delivery charges for x shipments weighing a combimed total of the pounds vs 567.00

这道题答案选的是D,不明白怎么会无法确定呢?我是这样算的:16×0.2 (25*16-16)×0.15...这样对么?

因为x是个未知数，所以你无法确定它的值。