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SSC Selection Post 2025 PYQ — Question 49

SSC Selection Post - Graduation Level - 29th August 2025 - Shift 1 • Quantitative Aptitude • Q49

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Two lines are perpendicular if their slopes multiply to:

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Correct answer: C

Explanation

Two lines are perpendicular if the product of their slopes is −1.

That is,

m₁ × m₂ = −1