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Question

What should come at the place of question mark? : $98, 90, 82, 74, ?, 58$

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is
66

Solving the Number Sequence

The question asks to find the missing number in the sequence: $98, 90, 82, 74, ?, 58$. We need to identify the pattern governing this sequence.

Identifying the Pattern

Let's examine the difference between consecutive terms:

  • $98 - 90 = 8$
  • $90 - 82 = 8$
  • $82 - 74 = 8$

The pattern observed is that each term is obtained by subtracting 8 from the previous term. This indicates an arithmetic progression with a common difference of -8.

Calculating the Missing Term

To find the missing term, we apply the identified pattern to the term before the question mark, which is 74.

Missing Term = Previous Term - Common Difference

Missing Term = $74 - 8$

Missing Term = $66$

Verifying the Sequence

To confirm, let's check if subtracting 8 from our calculated missing term (66) yields the next term in the sequence (58).

$66 - 8 = 58$

This matches the given sequence, confirming our calculation.

Conclusion

The number that should come at the place of the question mark is 66.

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