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Question

Complete the series.
2, 4, 7, 11, 16, ?

This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
22

Series Pattern Identification

Examine the differences between consecutive terms in the series: 2, 4, 7, 11, 16.

  • $4 - 2 = 2$
  • $7 - 4 = 3$
  • $11 - 7 = 4$
  • $16 - 11 = 5$

The differences are increasing sequentially: 2, 3, 4, 5.

Completing the Series

The pattern shows that the next difference should be 6.

To find the missing term, add this next difference to the last term of the series:

  • Last term = 16
  • Next difference = 6
  • Missing term = $16 + 6 = 22$

Therefore, the next number in the series is 22.

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