Average Salary of Unskilled Workers:
The average salary of a group of unskilled workers is given as 10000 rupees.

Average Salary of Skilled Workers:
The average salary of a group of skilled workers is given as 15000 rupees.

Combined Salary:
The combined salary of both groups is given as 12000 rupees.

Finding the Percentage of Skilled Workers:
To find the percentage of skilled workers, we need to compare the salaries of the two groups and determine the proportion of skilled workers in the total workforce.

Let's assume there are 'x' unskilled workers and 'y' skilled workers in the workforce.

The total salary of unskilled workers is calculated as 'x' multiplied by the average salary of unskilled workers:
Total Salary of Unskilled Workers = x * 10000

Similarly, the total salary of skilled workers is calculated as 'y' multiplied by the average salary of skilled workers:
Total Salary of Skilled Workers = y * 15000

According to the given information, the combined salary is 12000 rupees. So, we can write the equation:
Total Salary of Unskilled Workers + Total Salary of Skilled Workers = 12000

Substituting the above equations, we have:
x * 10000 + y * 15000 = 12000

Simplifying the equation further, we get:
10000x + 15000y = 12000

Now, to find the percentage of skilled workers, we need to determine the value of 'y' in terms of 'x' or vice versa.

Let's assume 'x' = 1, which means we have 1 unskilled worker. Substituting this value in the above equation, we get:
10000 * 1 + 15000y = 12000
10000 + 15000y = 12000
15000y = 2000
y = 2000/15000
y = 2/15

So, the ratio of skilled workers to unskilled workers is y:x = 2:15.

Now, to find the percentage of skilled workers, we can use the formula:
Percentage of Skilled Workers = (y / (x + y)) * 100

Substituting the values, we have:
Percentage of Skilled Workers = (2 / (15 + 2)) * 100
Percentage of Skilled Workers = (2 / 17) * 100
Percentage of Skilled Workers ≈ 11.76%

Therefore, the percentage of skilled workers in the workforce is approximately 11.76%.

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