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GMATprep - Faster Method to solve this ?

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GMATprep - Faster Method to solve this ? [#permalink] New post 04 May 2007, 12:49
Can anyone explain a faster method to solve this ?
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 [#permalink] New post 04 May 2007, 13:28
Yes ! just plug in an easy number , say 1/2

first of you can always know that the number with the highest exponent is the smallest fraction:

1/2^5 =1/32

1/2^2= 1/4

so on the face of it I,II and III are correct !

:-D
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 [#permalink] New post 04 May 2007, 14:45
I, II and III must be right because we have a number that is positive and less than 1. Therefore X^1 is the greatest number X^2<X^1 and so on.
  [#permalink] 04 May 2007, 14:45
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GMATprep - Faster Method to solve this ?

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