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Medium Level Question 20 – answer, explanation & discussion

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Question 20 Back to Exercise

How many squares of all sizes are there on an 8 × 8 chessboard?

  • A 204 Correct
  • B 64
  • C 1,296
  • D 140
Correct Answer: Option A

1² + 2² + … + 8² = 204

Trap: 64 counts only the small squares.

Answer: 204

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