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a doubt in undestanding teh sum

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Source: — Problem Solving |

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Re: a doubt in undestanding teh sum

by Ian Stewart » Tue Sep 15, 2009 8:27 am
gmat20092009 wrote:roger sells twice as many as 20 tickets as thomas ..
That sentence is meaningless.
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

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