Question 17081 – NTA UGC NET JUNE-2023 Paper-2

The final value of a counting semaphore after ‘p’ P (wait) operations and ‘v’ V (signal) operations can be calculated as follows:

Final Value = Initial Value + V – P

In this case, the initial value is 7, ‘p’ is 20, and ‘v’ is x. So,

Final Value = 7 + x – 20

Given that the final value is 5, we can set up the equation:

5 = 7 + x – 20

Now, solve for ‘x’:

x = 5 – 7 + 20
x = 18

So, the value of ‘x’ is 18.