CAT 2017 [slot 1] Question with solution 23

$\log_{0.008}\sqrt{5}+\log_{\sqrt{3}}81-7$

$3^4 = 81$

Hence,

$\log_{0.008}\sqrt{5}+ 8 -7$

$\frac{log 5^{0.5}}{log 5^{-3}} + 1$

$1 - \frac{1}{6}$

= $\frac{5}{6}$