新GRE數(shù)學(xué)解題易犯錯(cuò)的10個(gè)題型

1. l1, l2 and l3 are three lines in space

The number of points at The number of points at

which lines l1 and l2 intersect which lines l2 and l3 intersect

1，三條肆意直線，L1和L2的交點(diǎn)的個(gè)數(shù)與L2和L3的交點(diǎn)的個(gè)數(shù)沒關(guān)。

2. The number of 1/4-inch lengths in 1

a 4-inch length

2，是問4英尺中有若干好多個(gè)1/4英尺，應(yīng)該是16個(gè)，所以A

3. The maximun number of solid cubes 4

having edges of length 1/2 meter that

can be placed inside a cubical box

having inside edges of length 1 meter

3邊長為1的立方體里多能放下幾個(gè)邊長為1/2的立方體，當(dāng)然是8個(gè)咯

4. Cube C has volume 8 cubic centimeters

The area of one of the faces of cube C 3 square centimeters

4立方體體積是8，那一個(gè)面的面積當(dāng)然是4咯

5. Ms.Smith got an 8 percent cost-of-living raise of $20 per week

Ms.Smith's new weekly salary $260

5 x*0.08=20，那x+20=270>260

6. On a certain number live, if -7 is a distance of 4 from n and 7 is a distance of 18

from n then n=

A.25 B.11 C.3 D.-3 E-11

6應(yīng)該是-11

7. For all real numbers a and b. if a?b=a（a+b）， then a?（a?b）=

A. a2+ab B a2+ab+a C a2+a+b D a3+a2b E a3+a2b+a2

注：a2暗示a平方，a3暗示a立方

7新界說的運(yùn)算a?b=a（a+b）， 那a?（a?b）=a?（aa+ab）=a（a+aa+ab）=aa+aaa+aab

8.secretary typed 6 letters,each of which had either 1 or 2 pages.If the secretary typed 10 pages in all, how many of the letters had 2 pages?

A 1 B 2 C 3 D 4 E 5

謎底是D，問題問題我都看不懂，是啥意思呢？

這是說秘書打六封信，沒一封信要1頁或者兩頁。如不美觀秘書總共打了10頁，那么有若干好多封信是兩頁？

解答：設(shè)有x封，則2x+（6-x）=10,解得x=4.

9 how many of the five numbers above are each equal to the product of an integer and an odd integer that greater than 1?

這五個(gè)數(shù)是：2 6 8 14 16

a.none b.one c.two d.there e.four

我感受這道題除了2不成能，其它四個(gè)數(shù)都有可能?？芍i底是c,想問巨匠為什么？

問題問題意思是這5個(gè)數(shù)哪些可所以2個(gè)>1的數(shù)的積，一個(gè)是奇數(shù)，一個(gè)是整數(shù)，只有6和14的因數(shù)中有奇數(shù)，所以C.

10 這是一道圖表題。

what was the approximate percent increase in personal income from 1965 to 1970?

是這樣（1970-1965）/1965仍是（1970-1965）/1970這樣？

是這樣：（1970-1965）/1965

以上即是新gre數(shù)學(xué)解題易犯錯(cuò)的10個(gè)題型介紹，希望對考生的新gre數(shù)學(xué)考試備考有所幫助。