Question

A) 1
B) -3/4
C) -1
D) -4/3
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Answer 1

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In this question ,

Log base ¾ (1.3 bar )

here , we have to find the n th Power of ¾ so that ,( 1.3 bar) comes

$log_{ \frac{3}{4} }(1. \bar 3) = n \ \\ \\ \implies \: {( \frac{3}{4}) }^{n} = 1. \bar3 \\ \\ \implies \: {( \frac{3}{4} )}^{n} = \frac{4}{3} \\ \\ \implies \: n = - 1$

So, the correct answer is Option C (-1)