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Logarithms

The value of ...

Question

The value of $x$ satisfying ${log}_{243} x = 0.8$

81

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1.8

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2.43

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27

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Solution

The correct option is C $81$
${log}_{243} x = 0.8$
$\Rightarrow x = 243^{0.8}$
$\Rightarrow x = 81$
Hence, A is the correct option.

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