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SSC CPO 2025 PYQ — Question 11

SSC CPO - 11 Dec 2025 - Shift 1 • Reasoning • Q11

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Complete the series.
20, 15, __, 5, 0

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Correct answer: A

Explanation

Series: 20, 15, __, 5, 0

Observe pattern:

20 − 5 = 15

15 − 5 = 10

10 − 5 = 5

5 − 5 = 0

Hence, the correct answer is option 1.