2018年12月22日GRE数学机经满分不容错过让1题不错成为可能

2018年12月17日17:59 来源：小站教育作者：小站GRE编辑: 参与（0）阅读（13223）

摘要：GRE数学难度对中国考生来说虽然不高，但实际上想要保证零失误拿到170满分还是颇有一定难度的。许多同学因为粗心大意而扣分没能拿到满分尤其可惜。如何才能确保GRE数学高分减少或杜绝失误？全新发布的2018年12月22日GRE数学机经不妨参考一下！

2018年12月22日场次GRE数学机经发布，详细内容包括对12月22日GRE数学各大高频考点题型的具体讲解和解题思路剖析，确保考生不在简单数学部分意外失分，顺利拿到高分满分！

2018年12月22日GRE机经其他题型预测：作文/阅读/逻辑/填空/等价 请走这里

题目

1. Each week a salesperson receives a commission that is equal to 12 percent of the first $500 of sales plus 20 percent of additional sales. If the salesperson received a commission of $380 last week, what was the total amount of the sales that the salesperson made last week?

A. $1,600

B. $1,660

C. $1,860

D. $2,000

E. $2,100

答案：E

解析：$500*12%=$60; $380-$60=$320; $320/0.2=$1600; $1600+$500=$2100

2. 已知x ≠ 0，

Quantity A: x^2

Quantity B: x(x+5)

A. Quantity A is greater.

B. Quantity B is greater.

C. The two quantities are equal

D. The relationship cannot be determined from the information given.

答案：D

解析：如果x > 0, 则B > A; 如果x < 0, 则B < A，由于x值无法确定，因此两者大小无从比较，所以选D。

3. If x< y, which of the following must be true?

A. 2x< y

B. 2x> y

C. x2< y2

D. 2x-y< y

E. 2x-y< 2xy

答案：D

解析：D项不等式变化可得2x<2y，也就是条件的x

4. The table shows the frequency distribution of the random variable X. What is the median of the distribution of the Value X?

X	Frequency
0	6
1	11
2	18
3	23
4	15

A. 1.0

B. 1.8

C. 2.0

D. 2.5

E. 3.0

答案：3

解析：题干问X这组数据的中位数。根据右侧的频率可知，总共出现了73个数字，所以中位数应该是第37个数字，所以中位数是3。

5. According to a tax rate formula for a certain year, the amount of tax owed by an individual whose annual income was between $31,850 and $77,100 was equal to a base tax of $4,386 plus 24 percent of the annual income that exceeded $31,850.According to this formula, what was the amount of tax owed by an individual whose annual income that year was $42,000?

答案：6822

解析：题干问，某一年个人收入在$31,850到$77,100之间的税收计算方式为$4,386加上超出$31,850部分的24%。问收入为$42,000的个人这一年需缴纳多少税?

所以我们可以得到所缴税的计算方式=4386+24%*(42000-31850)=6822.

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