Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Appendix: Inductive and Deductive Reasoning - Appendix Exercises - Page A-6: 21

Answer

Dick is the computer operator.

Work Step by Step

Neither Tom nor Joan is the computer operator, because they ate dinner with the computer operator. Mary is not the computer operator because she works on the same floor as the computer operator. This leaves Dick as the only option for the computer operator.
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