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 99, 80, 63,….35

  • A.48
  • B.84
  • C.46
  • D.64

Answer: B

Correct answer: 48

Each term is one less than a square, counting downwards: \( 10^2-1=99 \), \( 9^2-1=80 \), \( 8^2-1=63 \), so the next is \( 7^2-1 = \mathbf{48} \), followed by \( 6^2-1 = 35 \).

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