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SSC Selection Post 2025 PYQ — Question 99

SSC Selection Post - Higher Secondary Level - 24th July 2025 - Shift 2 • Reasoning • Q99

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Choose the number that does not belong to the group.

Show answer & explanation

Correct answer: C

Explanation

81 = 3⁴

243 = 3⁵

729 = 3⁶

All three are powers of 3.

But,

512 = 2⁹

is not a power of 3.