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Which number should follow 3, 7, 15, 27, 43 in this series?

Competition practiceAlphanumeric / Series
  • A63
  • B59
  • C61
  • D67

Step-by-Step Solution

The differences are 4, 8, 12, 16 (going up by 4 each time), so the next difference is 20: 43 + 20 = 63.
Answer: A) 63

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