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Given that it takes 1 millisecond to move the read/write head from one track to the next on a magnetic disk, and that the arm

Given that it takes 1 millisecond to move the read/write head from one track to the next on a magnetic disk, and that the arm is positioned at track 30 currently moving towards the lower end. Compute the total seek time to satisfy the following disk requests when SCAN scheduling is used: 4, 40, 11, 35, 7, 14, 67

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