At a particular time of computation, the value of a counting semaphore is 7. Then 20 P operations and 'x' V operations were completed on this semaphore. If the final value of the semaphore is 5, x will be
| A. | 22 |
| B. | 18 |
| C. | 15 |
| D. | 13 |
Answer : B Explanation :
Each P operation will decrease the semaphore value by 1 and V operation increases by 1. |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
