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GMATPrep Problem

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GMATPrep Problem

by peppero230 » Mon Mar 31, 2008 6:58 pm
What is the fastest way to solve this problem? Like should I be thinking in terms of some kind of number properties instead of plugging in different numbers to test each answer? Because that took me way too much time..Thanks!

The answer is E.
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by simplyjat » Mon Mar 31, 2008 10:39 pm
For exponential values there are three regions; less than 0, from 0 to 1 and greater than zero. If you analyze all the three regions all three equations will be valid....
1) for less than zero; x > y means x^2 <y> y means x^2 <y> y means x^2 > y^2

Its important to correctly identifying the ranges when dealing with backtracking....
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picking numbers

by resilient » Tue Apr 01, 2008 12:08 am
with picking numbers, is there a way to back solve this and please show how to actually test each roman numeral. This is def taking too long!
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by moneyman » Tue Apr 01, 2008 8:03 am
Hey Simplyjat...I picked fractions for all three and have got the answer as E.
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