SSC Selection Post 2025 PYQ — Question 48

SSC Selection Post - Higher Secondary Level - 29th August 2025 - Shift 2 • Quantitative Aptitude • Q48

The binary number 11111111 divided by 1111 gives _______ in the decimal system.

Show answer & explanation

Correct answer: D

Explanation

11111111₂ = 255₁₀

1111₂ = 15₁₀

Therefore, 255 / 15 = 17

The second largest prime number less than 20