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[GRE数学] 新GRE数学考试算术题精选例子(4)

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发表于 2012-8-15 12:55:17 | 显示全部楼层 |阅读模式
新GRE考试的改革,让许多考生们都感觉头疼,但是复习起来如果觉得难的话,不妨练习一下这些经典例题,一定会有所帮助的哦! 1 J4 C/ V" o6 p- K9 L% V
1.In a list of numbers, the first number is 3, the second is 4, and each subsequent number is the sum of all the preceding numbers in the list. If the 20th number in the list is x, what is the 25th number in the list?  
/ L5 P7 u" G4 M8 o1 }! J* y  A.7x
0 S6 v! Q. s) @9 N1 U  B.16x
7 b, b( p( H( `: S, _' O+ E# ^  C.32x
' T1 n* {4 E% \  E$ b  D.35x 8 \5 e; w; w# ?4 N
  E.161x * j1 a, u$ a! }) B. ~1 T1 E
  答案:C 6 `) T6 M# e$ {1 k$ X0 y4 R
2.Which of the following numbers is both a factor of 48 and a multiple of 6? , J! F) \8 ~, t9 l0 h9 Z8 a& U
  A.2 $ s/ G1 H# q2 F, B! k
  B.8
/ y# P7 T( v$ T- }) q  C.12 ' b3 C7 Y4 x# J! y% T7 P. H
  D.16 www.examw.com
6 {5 o- @# Y! c& w$ P  E.18
+ v1 q; F( l  q2 k6 c  i8 N0 {  答案:C # x$ z) f) n- W! l
3.The least common denominator of 1/2,1/3,and1/4 1 S. `* H% Y8 w( Z
  15 % P+ e/ C5 k6 ]! A: R' ]" Q; S' t
  答案:B
, I/ B/ F# r6 t8 F4.If r and s are positive integers, each greater than 1, and if 11(s-1)=13(r-1), what is the least possible value of r+s?
+ S0 R- b! Y% I6 C7 B/ F  A.2
- i9 T/ M9 A$ u5 P  V  B.11
* a- {$ Q  g( B! B5 O  C.22 4 v( a# f7 P5 x
  D.24 www.examw.com6 ]7 o) U* D) O9 s, v: N  p
  E.26
1 M* Z& K# ?& [) ~% \# O  答案:E 8 a/ J" @& `1 m! m: j! B
5.When integer n is divided by 9, the remainder is 2.
1 P' \& w4 Y, o7 f# O7 q  The remainder when n is divided by 3 5 t% [- I9 G" ^8 T- S. s- w3 h3 Q/ C
  2
- L1 J' {2 T) }0 G  答案:C
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