0 votes 0 votes Consider the processes P1, P2, P3 arrived in the sequence P2, P3, P1 and the burst time of the processes are 3, 3, 24 respectively. What is the average TAT? (a) 30 (b) 20 (c) 40 (d) 35 Operating System operating-system + – manisha11 asked Sep 15, 2018 manisha11 348 views answer comment Share Follow See all 4 Comments See all 4 4 Comments reply arvin commented Sep 15, 2018 reply Follow Share Scheduling used?? 0 votes 0 votes manisha11 commented Sep 15, 2018 reply Follow Share Not mentioned Not getting any of the mentioned options, getting 10 using FCFS. But Answer =20 0 votes 0 votes Shaik Masthan commented Sep 15, 2018 reply Follow Share if scheduling algorithm not given, just left the problem, don't worry to assume more things, note that it is not standard question. 1 votes 1 votes arvin commented Sep 15, 2018 reply Follow Share so if nothing is mentioned lets assume it to be based on FCFS. process AT BT CT TAT (CT-AT) p1 0 3 30 30 p2 0 3 3 3 p3 0 24 27 27 AVG...-> (30+3+27)/3=20 GANTT CHART : p2(3) p3(27) p1(30) so avg. tat : 20 units. 0 votes 0 votes Please log in or register to add a comment.