In the following number series a wrong number is given Find out the wrong number 10 30 58 95 138 190...........

Quantitative Aptitude(IBPS RRB PO) Number series

In the following number series, a wrong number is given. Find out the wrong number.

10, 30, 58, 95, 138, 190, 250

This questions was previously asked in

RRB PO Prelims (21 August 2022 Shift1)

138

190

None of these

- Let's examine the differences between each number in the series:

- 30 - 10 = 20

- 58 - 30 = 28

- 95 - 58 = 37

- 138 - 95 = 43

- 190 - 138 = 52

- 250 - 190 = 60

- The differences should form a recognizably increasing pattern or sequence:

- The sequence: 20, 28, 37, 43, 52, 60

- Notice that the differences between consecutive terms mostly increase, except for 28 -> 37 and 43 -> 52:

- These suggest something is off at a deeper level.

- Re-examining, if you look closely:

- 95 is not aligned with the expected increment, breaking the pattern.

- The expected number should align with differences that increase similarly, and it seems to deviate around 95.

- Since the pattern is disrupted at 95, this number is flagged as incorrect.

- Correct Answer: Option 2, 95

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