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NDA 2018
Exam
NDA
Year
2018
Subject
Mathematics
Chapter
Binary Numbers

NDA 2018 · Mathematics · Binary Numbers

The binary number expression of the decimal number 31 is

The binary number expression of the decimal number 31 is

Options

  1. A11111111
  2. B1011110111
  3. C1101111011
  4. D1111111111

Correct answer

D. 1111111111

Step-by-step solution

Decimal number =31=31. 23112151271231211&0\begin{array}{c|c|c}2 & 31 & 1 \\2 & 15 & 1 \\2 & 7 & 1 \\2 & 3 & 1 \\2 & 1 & 1 \& 0 &\end{array} So, binary form of 31 is 11111.
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