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SSC Selection Post 2025 PYQ — Question 48

SSC Selection Post - Higher Secondary Level - 31st July 2025 - Shift 2 • Quantitative Aptitude • Q48

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Binary number 11111111 added to 10001000 becomes decimal number:

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Correct answer: C

Explanation

Binary numbers:

11111111₂ = 255₁₀

10001000₂ = 136₁₀

Sum = 255 + 136 = 391