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Chapter 4: Use Matrix Logic

Chapter 4: Use Matrix Logic. Tom, John, Fred, and Bill each brought his favorite meat to barbecue. From the clues below, determine each man’s occupation and favorite meat. Tom is neither the nurse nor the teacher. Fred and the pilot play in a jazz band together.

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Chapter 4: Use Matrix Logic

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  1. Chapter 4: Use Matrix Logic

  2. Tom, John, Fred, and Bill each brought his favorite meat to barbecue. From the clues below, determine each man’s occupation and favorite meat. Tom is neither the nurse nor the teacher. Fred and the pilot play in a jazz band together. The burger lover and the teacher are not musically inclined. Tom brought hot dogs. Bill sat next to the burger fan and across from the steak lover. The secretary does not play an instrument or sing.

  3. Make a chart (matrix).

  4. Mark traits(ignoring musical cues).

  5. Combine with musical clues (perhaps using adjunct list).

  6. Eliminate possibilities.

  7. Act on eliminated possibilities and eliminate more.

  8. Substitute Fred’s food marks at bottom of nurse column.

  9. Act on eliminated possibilities and eliminate more.

  10. Cross-correlate “Secretary” and “John.”

  11. Eliminate possibilities and act on eliminated possibilities.

  12. Read off solution. Tom Pilot Hdog John Scty Burg Fred Nurse Steak Bill Tchr Chkn

  13. Strategy: Use matrix logic • Mark traits from clues. • Combine clues, perhaps using adjunct lists. • Eliminate possibilities and act on eliminated possibilities. • Substitute. • Cross-correlate. • For other approaches or problems: Study the introduction, and test assumptions.

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