@ kavach
Kindly let me know which questions u are talking about ?/
kindly mention the ques beacuse logarithm have many questions of diffrent pattern , so, explaining all of them will be a little difficult here .
in normal logarithm ques u need to just look the table and put out the value and also have to apply the besic logarithm formula .,
\HOPE IT CLEARS
ALL THE BEST ..