Question

The irrational number among the following is

• A. $3.5$
• B. $\sqrt{3}$
• C. $\frac{5}{9}$
• D. $0.007$

Answer 1

The correct option is B $\sqrt{3}$

$3,\frac{5}{9},0.007$ are rational numbers as they can be express in the form of $\frac{p}{q}$ where $p,q\in Z$ and $q\ne 0.$

$\sqrt{3}=\mathrm{1.73205...}$
It is not repeating nor terminating. So, it is irrational number.