Question

If $\frac{\sqrt{1296}}{x}=\frac{x}{2.25}$ then value $x$ is:

• A. $0.9$
• B. $0.09$
• C. $9$
• D. $1.9$

Answer 1

The correct option is C $9$

we know that, $\sqrt{1296}=36$

$\frac{6}{x}=\frac{x}{2.25}$

$x^2=36\times 2.25$

$x^2=81$

$x=\sqrt{81}$

$x=9$