GMAT数学考试常见题型的解题技巧有哪些呢?以下将为大家深入分析GMAT数学考试常见题型的解题策略和技巧,希望能够为考生备战GMAT数学考试带来帮助。
128 做A,B两种题,做对A了给1分,做对B了给2分,某某做对A的正确率是80%,做对B的概率是55%,一共得了90分问一共做了多少题?
A。。。
B。。。
C60
D90
E120
X80%1+Y55%2=90
求 X+Y
化简 4/5X+11/10Y=90 8X+11Y=900 8X+8Y8X+11Y11X+11Y
8X+8Y11X+11Y 900/11
81
139 a^+b^=0? Answer:C
1, a+b=0,
2, c-d=0
C
164 PS. Law firm has branches in X,Y andZ states. Each Lawyer has either a license in one state or in all three states. there are 10, 11, 13 lawyers licensed in the 3 states respectively. there are 28 lawyers in total in the firm. how many lawyers work in state Z?
貌似之前出现过吧或者是在prep做过?设in all three states的人数是X,10-x+11-x+13-x=28-x 算出x=3,那么只在Z的就是13-3=10
271 PS:70,200,N,它们三个数分别是另外两个数的products的factory,问N的可能的最大值除以最小值的商,答案有20,100,700之类的,我选的是100
220 一个公司programmer的平均收入是x,statistician的平均收入是y,问programmer和statistician的平均收入与/2哪个大?
1.programmer人数比较多
2.programmer的平均收入比statistician的平均收入少
这个我选的是C,考带权重的平均值。prep有个类似的题。
有个性质,当pragrammer和statistician人数1:1时,所有人平均收入正好是/2。当programmer人数较多时,所有人平均收入将靠近x。再加上条件2,x
226 .还有一道题,说S是一个square region在一个xy的平面里,面积是1,然后这个sqaure region的两个possible boundary points是啥。本人的理解就是这个square region的2个对角顶点的坐标
311. 有一个square,面积为1,在平面坐标系里面。为哪两个点可能 lie on the boundary of square?
A.
B.
就是看两点距离是否小于对角线根号2,小于则在boundary.A不对
230 DS:0bc 且三个都是连续整数,问abc能被8整除?
1) ac是偶数 ------ac-----偶奇偶 大于0的任何三个连续偶奇偶都能被8整除
2) bc被4整除-----不充分
我的答案选A
289 DS,1+x+x^2 +X^3+x^4 1/
x0
x1
我的答案:C
314. a terminating decimal is a decimal formed by a finite number of nonzero digits. Whether c/d is a terminating decimal? 分页标题#e#
A. c is a factor of 60
B. d is a factor of 250
B
328 .有一题DS题 求mn
4^n=2^m
2^n=3^m
算了半天还是不知道,最后选了E,但如果题目限定M,N是整数,则可以肯定m=n=0
400 给定两个数70,200,求另一个数,使得其中任意一个数是另两个数成绩的因子。
假设另一个数a,
1若满足200是70与a乘积的因子,则a必定是20的倍数;
2若满足70是200与a乘积的 因子,则a必定是7的倍数。
因此a最小值为207=140.
以上为大家推荐了一些GMAT数学试题的使用解题技巧,考生不妨从中借鉴,通过针对性的练习来逐步掌握GMAT数学考试的解题技巧,从而在GMAT考试中发挥出更好的水平。
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