Question 33

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waecmaths question: 

If ${{\log }_{2}}(3x-1)=5$, find x

Option A: 

2.00

Option B: 

3.67

Option C: 

8.67

Option D: 

11.00

waecmaths solution: 

$\begin{align}  & {{\log }_{2}}(3x-1)=5 \\ & 3x-1={{2}^{5}} \\ & 3x-1=32 \\ & 3x=33 \\ & x=11 \\\end{align}$

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