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GMAT Quantative Guide Review Questions 150 (Problem)

Problem Solving — algebra and arithmetic
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by arvindiyer » Sun Dec 11, 2011 6:03 am
In the problem solving section. The first question involves a pentagon PQRST, PQ=3, QR=2, RS=4, ST=5, which of the following lengths 5,10, and 15 could be the value of PT? (Q.150). The explanation given in the official guide is far too tedious and would take the entire 75 minutes to sit out and graph. There must be an easier explanation for this problem.
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Source: — Quantitative Reasoning |
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by trinity22 » Tue Dec 13, 2011 9:48 am
I saw this explanation at another forum:

Answer is C i.e. 5 and 10 because the sum of all the other sides is 14 and one side can never be greater than sum of other sides



Simple enough!!
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