Answer will be D) None of these
Time 0 Ms : Schedule P1, P2, P3 (Memory still you have 100 KB)
Time 5 Ms : P2 Get completed then you will have memory (1100 KB), Now you can schedule P4, (memory still you have is 400 KB)
Time 10 Ms: P1 get completed the you will have memory (1000 KB), Now you can schedule P5.
Time 13 Ms: P4 will get completed.
Time 20 Ms: P3 will get completed.
Time 25Ms: P5 will get completed.
Time 30Ms: No processor is in the memory.