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Discussion

Match each signed difference with its interpretation.
List I
A. Positive Delta L star
B. Negative Delta a star
C. Positive Delta b star
D. Negative Delta C star
List II
1. the batch is yellower than the standard
2. the batch is lighter than the standard
3. the batch is duller than the standard
4. the batch is greener than the standard

  • A.A-2, B-4, C-1, D-3
  • B.A-4, B-2, C-1, D-3
  • C.A-2, B-4, C-3, D-1
  • D.A-3, B-1, C-4, D-2

Answer: A

The signs indicate the direction of correction required in the recipe. Consistency in the subtraction convention is essential to avoid reversing them. Signs indicate the direction of correction. Consistency avoids reversing the correction.

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