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Source: Official Guide for the GMAT 13th Ed. Problem Solving; #222 Official Guide for the GMAT 2015 14th Ed. Problem Solving; #222

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1

Of the 200 students at College T

Of the 200 students at College T majoring in one or more of the sciences, 130 are majoring in chemistry and 150 are majoring in biology. If at least 30 of the students are not majoring in either chemistry or biology, then the number of students majoring in both chemistry and biology could be any number from

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Mike McGarry, Magoosh Tutor

Dec 28, 2013 • Comment

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