A store has a
\[40\%\] off sale on headphones. With this discount, the price of one pair of headphones is
\[\$36\].
What is the original price of the pair of headphones?
Let the original price of the headphones be $x.
Since there is a 40% off sale, the discount is 40% of the original price, which is $\frac{40}{100}\cdot x = \frac{2}{5}x$.
After the discount, the price of the headphones is $x - \frac{2}{5}x = \frac{3}{5}x = \$36$.
Solving for $x$, we have $\frac{3}{5}x = 36$, so $x = \frac{5}{3}\cdot 36 = \boxed{60}$.
The original price of the headphones is $60.