Question

The decimal number equivalent to a binary number $1011001$ is:

• A. $13$
• B. $17$
• C. $89$
• D. $178$

Answer 1

Answer: (C)

$89$

Given, binary number $=1011001$
Its equivalent decimal number
$=2^0+0+0+2^3+2^4+0+2^6$
$=1+8+26+64$

$=89$