For each question, select the proper option from four options given, to make the statement true : (Final answer only)

$\sqrt{5}+\sqrt{5}$ is a $/$ an $\ldots \ldots \ldots$ number.

$2 \sqrt{3}+\sqrt{3}$ is equal to

For each question, select the proper option from four options given, to make the statement true : (Final answer only)

$4 . \overline{185}=\ldots \ldots$

Express $0.12 \overline{3}$ in the form $\frac{p}{q},$ where $p$ and $q$ are integers and $q \neq 0$

If $x=5+2 \sqrt{6},$ then find the value of $x^{2}+\frac{1}{x^{2}}$ and $x^{3}+\frac{1}{x^{3}}$

For each question, select the proper option from four options given, to make the statement true : (Final answer only)

$\sqrt{5} \times \sqrt{5}$ is a / an $\ldots \ldots \ldots$ number.