Answer:
The rate of depreciation is 50%
Explanation:
We are given
a car is depreciated in four years
so, depreciation in 1 year is
![=(1)/(4)](https://img.qammunity.org/2020/formulas/mathematics/college/tv4zmuyd6232lkgdxqbx85ic9a23udqtvt.png)
the rate of depreciation using twice the straight-line rate
so, we will multiply by 2 and then we can find rate of depreciation
so, rate of depreciation is
![=2* (1)/(4)* 100](https://img.qammunity.org/2020/formulas/mathematics/college/eetqkboqdcehdyxm1dzmdmqcchb144knvg.png)
%