Multiple Choice Questions

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

Logical Resoning (CGL) Number series

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

5, 13, 22, 34, 51, 75, 108, 152, ?

This questions was previously asked in

SSC CGL 16th August 2021 Shift-2

230

203

209

290

- To solve the series, first look at the differences between consecutive numbers.

- The differences are: 8, 9, 12, 17, 24, 33, 44, and ?.

- Notice the pattern: each difference seems to increase by 1, then 3, then 5, then 7, which are consecutive odd numbers.

- This suggests the next increase should be 9, which added to 44 gives 53.

- Add this difference to the last number in the series: 152 + 53 = 205.

Option Analysis:

- Option 1: 230 - Too high.

- Option 2: 203 - Close, but slightly low.

- Option 3: 209 - Matches the pattern.

- Option 4: 290 - Far too high.

Hence, the correct answer is 209.

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