SSC GD Constable 2021 · Question 285 of 377

Select the number from among the given options that can replace the question mark (?) in the following series. 13, 17, 26, 51, ?, 221

series

Answer: D. 100

Logic : Adding the square of consecutive prime numbers. Hence, "100" is the correct answer.

Source: SSC GD Constable 2021 Prev. Year Paper (2021-12-02 Shift 3) English — Prepp (with solutions) · reliable-secondary

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