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Determine the next number in the sequence 3, 4, 7, 16, 43, ?

Competition practiceNumber Series
  • A124
  • B129
  • C120
  • D86

Step-by-Step Solution

The differences are 1, 3, 9, 27 (powers of 3). The next difference is 81: 43 + 81 = 124.
Answer: A) 124

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