The fraction of the total profits does the company spend on new computers is 0.1/1 = 0.1 = 1/10.
For the coming year, the online giant will spend half of its annual profits on advertising. The percentage of profit spent on advertising is 1/2 = 0.5.
The remaining quantity is 1 - 0.5 = 0.5
They spend one-fifth of the remaining half on new machines. This suggests that the amount spent on new computers is decreasing.
1/5 * 0.5 = 0.1 = 1/10
As a result, the percentage of total revenues spent on new computers by the corporation is
0.1/1 = 0.1 = 1/10
The number line is depicted below.