In a school there re 30 teachers who teach mathematics or physics of these 18 teach mathematics
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In a school there re 30 teachers who teach mathematics or physics of these 18 teach mathematics and 6 tech both physics and mathematics. How many teach physics only?
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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