Answer
10843
Work Step by Step
To change from hexadecimal to decimal form, we have
$$
2A5B=2\times16^3+A\times16^2+5\times16^1+B\times16^0\\
=2(4096)+10(256)+5(16)+11=10843
.$$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.