CAT (QA) PYQs

If $\log _{4} 5=\left(\log _{4} y\right)\left(\log _{6} \sqrt{ } 5\right)$, then $y$ equals

If $\log_{12}81 = p$, then $3\frac{4-p}{4+p}$ is equal to

If $\log_2 [3 + \log_3 \{4 + \log_4 (x - 1)\}] - 2 = 0$, then $4x$ equals