What shall be the average waiting time per process if we know that 10…

2025

What shall be the average waiting time per process if we know that 10 processes (on average) arrive every second and there are normally 20 processes in the queue?

  1. A.

    03 seconds

  2. B.

    02 seconds

  3. C.

    18 seconds

  4. D.

    09 seconds

Attempted by 522 students.

Show answer & explanation

Correct answer: B

Little's Law: average number in queue = arrival rate × average waiting time.

  • Average number in queue (L) = 20 processes.

  • Arrival rate (λ) = 10 processes per second.

  • Average waiting time (W) = L / λ = 20 / 10 = 2 seconds.

Therefore, the average waiting time per process is 2 seconds.

A video solution is available for this question — log in and enroll to watch it.

Explore the full course: Mppsc Assistant Professor