Question

$log\frac{12}{13}-log\frac{7}{25}+log\frac{91}{3}=x$

• A.
  3
• B.
  5
• C.
  2
• D.
  4

Answer 1

The correct option is C

2
$log\frac{12}{13}-log\frac{7}{25}+log\frac{91}{3}=x$
$log\left((\frac{12}{13}\times \frac{91}{3})/\frac{7}{25}\right)=x$
$log(\frac{25}{7}\times \frac{12}{13}\times \frac{91}{3})$
= log 100
=2