Answer
The phone’s price is\[60\].
Work Step by Step
Let the price before reduction be x.
Reduction amount \[=\frac{20}{100}\times x\]
Price after reduction
\[\begin{align}
& \text{price}=x-\frac{20}{100}\times x \\
& =\frac{100x-20x}{100} \\
& =\frac{80x}{100} \\
& =\frac{4}{5}x
\end{align}\]
Price after reduction is given as\[48\], thus
\[\begin{align}
& 48=\frac{4}{5}x \\
& x=48\times \frac{5}{4}=60 \\
& =60
\end{align}\]
