Question 24

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waecmaths question: 

If ${{\log }_{9}}x=1.5$ find x

Option A: 

35

Option B: 

27

Option C: 

24.5

Option D: 

13.5

waecmaths solution: 

$\begin{align}  & {{\log }_{9}}x=1.5 \\ & x={{9}^{1.5}}={{({{3}^{2}})}^{\tfrac{3}{2}}}={{3}^{3}}=27 \\\end{align}$

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