新GRE数学考试算术题精选例子（9）

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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.On a certain number line, if-7 is a distance 4 from n and 7 is a distance of 18 from n then n=
　　A.25
　　B.11
　　C.3
　　D.-3
! A) B: O" R/ V# P" a　　E.-11
! ^4 h5 O) ?3 N　　答案：E
2. Which of the following equations can be used to find the value of x if 7 less than 5x is 5 more the product of 3 and x?
! ^; \$ E8 D% X5 q/ g　　A.5x-7=5+3x
( H6 o" L% R3 j% W% k, g　　B.5x-7=5+(3+x)
' B3 z, @" |0 S9 L! K2 R1 N! q1 x　　C.7-5x=5+3x
. ^& A5 H) _9 {　　D.7-5x=(5+3)x
$ R5 _: u7 a$ j8 X/ V6 a　　E.7-5x+5=3x
　　答案：A
) \4 q. D5 `) b/ K3.On a number line, the distance between the two points with coordinates -5 and 1 is how much less than the distance between the two points with coordinates 2 and 14?
/ E5 M" V6 o! Q; v  J4 M　　A.6
( i- Y! x6 B" I( W2 j　　B.8
( w. H2 \+ R. b　　C.10
　　D.12
　　E.16
　　答案：A
! Y0 j8 ]5 O* ?. q4.The expression (4+x)(2x-3) is equivalent to which of the following?
　　(1)2x(x+4)-3(x+4)
/ E; Q( I% V7 e: G3 j0 ]0 q　　(2)(x-4)(2x+3)
; u/ F0 R" |+ ~/ T　　(3)2x2-12
( [* `  @' e: q" `6 |* {4 [3 U　　A.(1) only
, y( ]* y8 t; Y4 B　　B. (2) only
　　C. (3) only
" r6 ]- u! c4 O% V　　D. (2) and (3)only
　　E. (1),(2) and (3)
　　答案;A
5 [0 L2 Q+ `/ p5.On the number line, 1.4 is halfway between which of the following pairs of numbers?
　　A.-1.4 and 2.4
　　B.-1 and 2
# _- M. b) S' b; q& o2 {　　C.-0.3 and 3.1转自:考试网 - [Examw.Com]
# r8 k+ J0 B# h) b  Y　　D.0.15 and 1.55
+ y# j5 P/ w" b: O　　E.0.4 and 1
　　答案：C