## Discussion Forum

Que. | An operating system uses shortest remaining time first scheduling algorithm for pre-emptive scheduling of processes. Consider the following set of processes with their arrival times and CPU burst times (in milliseconds):
Process : Arrival Time Burst Time P1 : 0 12 P2 : 2 4 P3 : 3 6 P4 : 8 5 The average waiting time (in milliseconds) of the processes is _________. |

a. | 4.5 |

b. | 5.0 |

c. | 5.5 |

d. | 6.5 |

Answer:5.5 |