waecmaths question:
Solve the equation $\frac{1}{5x}+\frac{1}{x}=3$
Option A:
$\frac{1}{5}$
Option B:
$\frac{2}{5}$
Option C:
$\frac{3}{5}$
Option D:
$\frac{4}{5}$
waecmaths solution:
$\begin{align} & \frac{1}{5x}+\frac{1}{x}=3 \\ & \frac{1+5}{5x}=3 \\ & \frac{6}{5x}=3 \\ & x=\frac{6}{5\times 3}=\frac{2}{5} \\\end{align}$
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