A group of applicants for training as air-traffic controllers consists of 35 pilots, 20 veterans, 30 pilots

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A group of applicants for training as air-traffic controllers consists of 35 pilots, 20 veterans, 30 pilots who were not veterans, and 50 people who were neither veterans nor pilots. How large was the group?

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Finite Mathematics and Its Applications

ISBN: 978-0134768632

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

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Question Posted: Feb 12, 2018 08:35 AM

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A group of applicants for training as air-traffic controllers consists of 35 pilots, 20 veterans, 30 pilots

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Finite Mathematics and Its Applications

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