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SSC Selection Post 2025 PYQ — Question 92

SSC Selection Post - Higher Secondary Level - 31st July 2025 - Shift 2 • Reasoning • Q92

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Choose the missing number in the series.
3, 6, 9, 12, ?, 18

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Correct answer: C

Explanation

3 → 6 (+3)

6 → 9 (+3)

9 → 12 (+3)

12 → ? (+3)

? → 18 (+3)

Therefore:

12 + 3 = 15

Correct answer: 15