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Chapter 4: Use Matrix LogicPowerPoint Presentation

Chapter 4: Use Matrix Logic

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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.

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.

Make a chart (matrix). barbecue. From the clues below, determine each man’s occupation and favorite meat.

Mark traits barbecue. From the clues below, determine each man’s occupation and favorite meat.(ignoring musical cues).

Combine with musical clues (perhaps using adjunct list). barbecue. From the clues below, determine each man’s occupation and favorite meat.

Eliminate possibilities. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Act on eliminated possibilities and eliminate more. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Substitute Fred’s food marks at bottom of nurse column. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Act on eliminated possibilities and eliminate more. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Cross-correlate “Secretary” and “John.” barbecue. From the clues below, determine each man’s occupation and favorite meat.

Eliminate possibilities and act on eliminated possibilities. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Read off solution. barbecue. From the clues below, determine each man’s occupation and favorite meat.

Tom Pilot Hdog

John Scty Burg

Fred Nurse Steak

Bill Tchr Chkn

Strategy: Use matrix logic barbecue. From the clues below, determine each man’s occupation and favorite meat.

- 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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