Given,
The selling price of the refrigerator is $400.
Required:
The original price of the refrigerator.
Consider,
x is the original price of the refrigerator.
The selling price of the refrigerator is two-fifths of the original price.
According to the question,
[tex]\begin{gathered} two-fifth\text{ of original price = selling price} \\ \frac{2}{5}\times x=\text{ }400 \\ x=400\times\frac{5}{2} \\ x=200\times5 \\ x=1000 \end{gathered}[/tex]Hence, the original price of the refrigerator is $1000.
