Question
# The value of ${\log _5}125$ is equal to:A. 0B. 1C. 2D. 3
Hint: Use the information that, on taking anti-log of ${\log _a}b = c$, we get $b = {a^c}$.
We know that, on taking anti-log of ${\log _a}b = c$, we get $b = {a^c}$. Now, let ${\log _5}125 = x$then on taking anti-log we get, $125 = {5^x} \Rightarrow {5^3} = {5^x} \Rightarrow x = 3$. Hence the value of ${\log _5}125$ is 3.