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Find the wrong number in the series: 6, 13, 27, 55, 110, 223.

Competition practiceNumber Series
  • A110
  • B55
  • C111
  • D27

Step-by-Step Solution

Rule is ×2+1: 6→13→27→55→111→223. The fifth term should be 111, so 110 is wrong.
Answer: A) 110

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