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Find the one which does not belong to that group ?

  • A.11
  • B.28
  • C.327
  • D.416

Answer: D

Each number is a digit written next to its own cube:

  • 11 → 1 and \( 1^{3} = 1 \)
  • 28 → 2 and \( 2^{3} = 8 \)
  • 327 → 3 and \( 3^{3} = 27 \)
  • 416 → 4 and 16, but \( 4^{3} = 64 \)

The fourth would have to be 464. The 16 attached to it is \( 4^{2} \), the square rather than the cube, which is precisely the trap.

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