Multiple Choice Questions

Select the number that can replace the question mark in the following series 1 11 35 79 251 ........

Logical Reasoning (CPO) Number series

Select the number that can replace the question mark (?) in the following series.

1, 11, 35, 79, ?, 251

This questions was previously asked in

SSC CPO 11th Dec 2019 Shift-2

152

149

105

150

- Let's break down the pattern in the series: 1, 11, 35, 79, ?, 251.

- Look for differences between consecutive terms:

- 11 - 1 = 10

- 35 - 11 = 24

- 79 - 35 = 44

- Next difference follows the sequence: 10 (1*10), 24 (2*12), 44 (2*22).

- The pattern suggests an increase based on 10, 12, then 22.

- Calculating further: 79 + 70 (2*35) = 149.

- This makes 149 the next number in the sequence.

- Correct Option: Option 2, 149

- Option 1 (152), 3 (105), and 4 (150) do not match this pattern.

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