Given total burst time is 80 units
LEVEL 1 : Process spends 4 units (Time Quantum ) and then preempts.( 1st time Interrupted)
Remaining B.T = 80-4=76
LEVEL 2 : Process spends 4+10=14 units (Time Quantum )and then preempts.(2nd time interrupted)
Remaining B.T =76-14= 62 units
LEVEL 3 : Process spends 14+10=24 units and then preempts.(3rd time interrupted)
Remaining B.T = 62-24 = 38 units
LEVEL 4 : Process spends 24+10 =34 units and then preempts.(4th time interrupted)
Remaining B.T = 38-34= 4 units
LEVEL 5 : Time quantum is 34+10=44 but process will spend only 4 unit as remaining B.T is 4 units
Process execution over.
Number of times interrupted (preempted) is 4
Queue number in which it terminates is 5