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Square tables are joined in a row and chairs are placed around them, as shown. Which rule gives the chairs for n tables?

Class 7Formulas and Rules from PatternsAlgebra
  • A
  • B
  • C
  • D

Step-by-Step Solution

Each table has 1 chair above and 1 below , plus 1 chair at each end (2): . Counts: 4, 6, 8 ✓.
Answer: C)

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