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Nov 29, 2012 09:19 am
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What is the value of x^2 - 4y^2?
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Problem Solving (PS)
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Two teams, working jointly, complete harvesting a plot in 4
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If each participant of a chess tournament plays exactly one
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There are 200 female managers in a certain company. Find the
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Which of the following inequalities is always true for any
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