SarkariPYQ

SSC CGL 2025 PYQ — Question 10

SSC CGL - 26 Sep 2025 - Shift 3 • Reasoning • Q10

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Find the missing number: 10 : 21 :: 12 : ?

Show answer & explanation

Correct answer: D

Explanation

Just as

10 : 21

10 × 2 = 20

20 + 1 = 21

Similarly

12 : ?

12 × 2 = 24

24 + 1 = 25

Correct answer: 25