Question

If $3^2\times x=81$, Find $x$.

• A. 0.000506
• B. $3^1$
• C. $3^3$
• D. $3^{-2}$

Answer 1

The correct option is A 0.000506

Given,

$3^2\times x=81$

$\Rightarrow$ $x=\frac{81}{3^2}$

= $\frac{3^4}{3^2}$

= $3^2$ [ $\frac{a^n}{a^m}=a^{n-m}$]