Multiple Choice Questions on If x log15 1 3x x log 155 log15 12 where x is an integer then what is x equal to ........ for NDA Exam Preparation

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Multiple Choice Questions

If x log15 1 3x x log 155 log15 12 where x is an integer then what is x equal to ........

Mathematics (NDA) Logarithm
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    If  x+ log15(1+3x) =  x log 155 +log15 12,where x is an integer, then what is x equal to?

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    Explanation:
    x+log15(1+3x)=xlog155+log1512
    ⇒log1515x+log15(1+3x)=log155x+log1512
    ⇒log1515x(1+3x)=log15(5x×12)
    ⇒15x(1+3x)=5x×12
    ⇒3x+32x=12⇒x=1

    By: Munesh Kumari
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