Question 7

loading...

Prev/Next links

Jambmaths question: 

Find the value of x for which $2({{3}^{2x-1}})=162$

Option A: 

$\tfrac{1}{2}$

Option B: 

$\tfrac{2}{5}$

Option C: 

$\tfrac{3}{2}$

Option D: 

$\tfrac{5}{2}$

Jamb Maths Solution: 

$\begin{align}  & 2({{3}^{2x-1}})=162 \\ & {{3}^{2x-1}}=81 \\ & {{3}^{2x-1}}={{3}^{4}} \\ & 2x-1=4 \\ & x=\tfrac{5}{2} \\\end{align}$

Jamb Maths Topic: 
Year of Exam: