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1, 4, 9, 16, 25, ?

  • A.34
  • B.36
  • C.48
  • D.49
  • E.64

Answer: B

Correct answer: 36

Each term is a perfect square of the counting numbers: \[ 1^2=1,\; 2^2=4,\; 3^2=9,\; 4^2=16,\; 5^2=25 \] so the next is \( 6^2 = \mathbf{36} \).

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