CUET Preparation Today
CUET
General Aptitude Test
Quantitative Reasoning
Algebra
If $243^{3x}=27^{(4x-1)}$, then the value of $4^x$ is:
4
-4
$\frac{1}{4}$
$\frac{1}{16}$
$243^{3x}=27^{(4x-1)}$
= $((3)^5)^{3x}=((3)^3)^{(4x-1)}$
15x = 12x - 3
3x = - 3
x = - 1
Now, $4^{x}$ = 4-1
= \(\frac{1}{4}\)