2016年1月GRE數(shù)學(xué)預(yù)測

2016年1月10日GRE數(shù)學(xué)預(yù)測   

       Out of 100 ladies attending the church fete, 85 had a white handbag; 75 had black shoes;

　　60 carried an umbrella; 90 wore a ring, How many ladies must have had all four items?

　　(A)15 (B)35 (C)5 (D)10 (E)25

　　The daily rate for a hotel room that sleeps 4 people is $39 for one person and x dollars for each additional person. If 3 people take the room for one day and each pays $29 for the room, what is the value of x?

　　(A) 6 (B) 8 (C) 12 (D) 13 (E) 24

　　A store currently charges the same price for each towel that it sells. If the current price of each towel was to be increased by $1, 10 fewer of the towels could be bought for $120, excluding sales tax. What is the current price of each towel?

　　(A)$ 1 (B)$ 2 (C)$3 (D)$ 4 (E)$ 12

　　某種溶液濃度為 125gram per liter, 轉(zhuǎn)換成 ounce per gallon,求表達(dá)式 已知 1 ounce=28.xxx gram and 1 gallon=3.875 liter

　　How many positive w hole numbers less than 81 are NOT equal to squares of w hole numbles?

　　滿足方程 x/13+y/39=1 的正整數(shù)對(x,y)有多少對。

2016年1月22日GRE數(shù)學(xué)預(yù)測

    What are the x-intercepts of the parabola defined by theequation y =2x2–8x –90?

　　Indicate allx-intercepts.

　　A. -10

　　B. -9

　　C. -5

　　D. -4

　　E. 4

　　F. 5

　　G. 9

　　H. 10

　　解析：C, G

　　因?yàn)榍髕軸截距，所以y=0，所以2x2–8x –90=0，所以(2x+10)(x-9)=0. 所以x= -5, 或者x=9. 所以選C,G.

　　The system of equations has how many solutions?

　　3x - 6y = 9

　　2y - x - 3 = 0

　　A. None

　　B. Exactly 1

　　C. Exactly 2

　　D. Exactly 3

　　E. Infinitely many

　　解析：B

　　因?yàn)?x - 6y = 9，所以x-2y=3. 因?yàn)?y - x - 3 = 0，所以2y-x=3. 所以x-2y=2y-x. 所以x=0,y=0.只有這一種可能。所以選B.

　　1. If x=3k/√5 and k>0， which of the following must be true?

　　解析：C

　　因?yàn)?，所以x=(3√5)/5 k，所以k

　　For the 3 numbers in a certain list, the average (arithmetic mean) and the median are equal to 16. If the greatest number in the List is 14 greater than the least number, what is the greatest number in the list?

　　解析：23

　　設(shè)最小的數(shù)為x,因?yàn)樽畲蟮臄?shù)比最小的數(shù)大14，所以最大的數(shù)為x+14.因?yàn)檫@三個數(shù)的平均值為16，且中間的數(shù)值為16，所以(x+16+(x+14))/3=16.所以x=9. 所以最大的數(shù)為9+14=23.

　　When thepositive integer dis divided by 12, the remainder is 5. Whatis the remainder when d is divided by 8 ?

　　A. 1

　　B.3

　　C.5

　　D.6

　　E.7

　　解析：A

　　正整數(shù)d被12整除后余5，因此正整數(shù)d為12*5+5=65. 所以〖65〗^2除以8等于528余1.所以選A。

　　In agroup of 60 people, the average (arithmetic mean) age of the 40 females is 60,and the average age of the 20 males is 70.

　　Column A ColumnB

　　Average age of all 60 people 65

　　A. Thequantity in Column A is greater

　　B. Thequantity in Column B is greater

　　C. The twoquantities are equal

　　D. Therelationship cannot be determined from the information given

　　解析：

　　因?yàn)橐还灿?0個人，40個人的平均年齡是60歲，20個人的平均年齡是70歲。所以這60個人的平均年齡為(40*60+20*70)/60=63.33. 63.33<65,所以B更大。所以選B。

　　以上就是GRE考試2016年1月10日和22日的數(shù)學(xué)預(yù)測機(jī)經(jīng)，希望對大家有幫助。更多GRE備考信息請繼續(xù)關(guān)注新通教育網(wǎng)站GRE考試頻道。

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