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時間:2016-08-26
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GRE考試不知大家準備的如何,今天留學監(jiān)理網的老師先給大家來一份8月26日GRE最新數學機經,同學們可以參考借鑒。
如果你讀不懂題,很可能是詞匯不好,你需要:GRE數學-常用詞匯和公式
1. Two librarians, Robert and Patricia, cataloged a combined total of 180 new books, each of which was cataloged by only one of the two librarians. Although they spent the same amount of time cataloging their books, Robert spent an average of 15 minutes per book whereas Patricia spent an average of 12 minutes per book.
Quantity A:The number of books cataloged by Robert
Quantity B:60
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.
參考答案:A
假定Robert登記了x本書,Patricia登記了y本書,那么可以得到兩個等式x+y=180, 15x=12y。根據等式計算即可。
想取得好成績,一定要有官方材料:ETS出品的GRE Math Review,幫你理清數學知識點
2. One of the solutions of the equation x^2+bx+c = 0 is -3.
Quantity A: 3b
Quantity B: c+9
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.
參考答案:C
將-3代入等式得到:9-3b+c=0,故3b=c+9
3. For any x , (x+1)^3=x^3+3x^2+3x+1
Quantity A: (y-1)^3+3(y-1)^2+3(y-1)+1
Quantity B: y^3
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
參考答案:C
假設x=y-1, 那么y=x+1, 代入得出結果相同。
4. x < y < 0
Quantity A: xy
Quantity B: y-x
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
參考答案:D
5. Parallelogram ABCD has adjacent sides of lengths 10 and 16.
Quantity A: The area of region enclosed by ABCD
Quantity B: 155
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
參考答案:D
平行四邊形為長方形時A大,但為其它形狀時可能B更大,因此無法確定。
以上就是“8月26日GRE最新數學機經”的詳細內容,最后,預祝大家都取得滿意的成績!
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