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9th Class Mathematics Related to Competitive Exam Question Bank Logarithms

  • question_answer
    If \[lo{{g}_{8}}x+lo{{g}_{8}}\frac{1}{6}=\frac{1}{3}\], then the value of s Is:

    A)  12     

    B)  16

    C)  18                               

    D)  24

    Correct Answer: A

    Solution :

    (a): \[{{\log }_{8}}\frac{x}{6}=\frac{1}{3}\] \[\frac{x}{6}={{\left( 8 \right)}^{\frac{1}{3}}}\] \[\frac{x}{6}=2\] \[x=12\]                       


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