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Find the value that should come in place of ? in the series: 4, 6, 11, 21, 38, ?

Competition practiceNumber Series
  • A60
  • B62
  • C64
  • D66

Step-by-Step Solution

Differences are 2, 5, 10, 17, … which follow (2, 5, 10, 17, 26). Next difference = 26, so 38 + 26 = 64.
Answer: C) 64

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