Question

If $\frac{\log 225}{\log 15}=\log x$, then the value $x$ is equal to

• A. $120$
• B. $65$
• C. $100$
• D. $95$

Answer 1

Answer: (C)

$100$

$\frac{\log 225}{\log 15}=\log x=\frac{2\log 15}{\log 15}=2\text{Assuming base 10}{\log }_{10}x=2x={10}^2=100$