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A survey of 138 persons was conducted at TCC, and it was found that 10 persons carried a cell phone, 97 persons carried a
A survey of 138 persons was conducted at TCC, and it was found that 10 persons carried a cell phone, 97 persons carried a tablet computer, and 7 carried both a cell phone and a tablet. 1. How many people carried a cell phone or a tablet? 2. How many people carried neither a cell phone nor a tablet? 3. How many people carried a cell phone only? 4. How many people carried a tablet but not a cell phone?
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
4th Edition
471021407, 9780471021407
