For this case we have to:
![\frac {1} {5} (1200) = 240](https://img.qammunity.org/2019/formulas/mathematics/middle-school/k1nkvvkl5u848jza71sh723ypucf3yv3rw.png)
Then, the washing machine was discounted $240.
Subtracting this amount from the original price we have
$1200- $240 = $960
So, after the discount, the washing machine costs $960
ANswer:
After the discount, the washing machine costs $960