Select the number from among the given options that can replace the question mark in the follow...........

Logical Reasoning (MTS) Number series

Select the number from among the given options that can replace the question mark (?) in the following series.

4, 9, 20, 43, ?, 185

This questions was previously asked in

SSC MTS 22nd October 2021 Shift-2

133

Correct answer is option 3: 90

To solve the series, let's analyze the pattern:

- Start with 4 and see how each term relates to the next.

- The series increases as follows:

- From 4 to 9 is an increase of 5 (4 + 5 = 9).

- From 9 to 20 is an increase of 11 (9 + 11 = 20).

- From 20 to 43 is an increase of 23 (20 + 23 = 43).

- Notice the pattern: increments are 5, 11, and 23.

- The difference between 5, 11, and 23 suggests a pattern of increasing by doubling and adding 1 to the previous increment.

- Continuing this pattern gives you 43 + 47 = 90.

- Based on this examination, the missing number in the series should be 90.

- Option:3 - 90 is correct.

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