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Gmat Quantitave ExercisesFundamentals of the Quantitative SectionConcepts you must review and questions you must answerBEFORE the corresponding lessonNUMBER SETS1) Z+ = positive integers = { 1, 2, 3, 4, 5, …}2) = whole numbers = { 0, 1, 2, 3, 4, 5, …}4) Q =rational numbers={ : , }5) I = irrationals = { :.