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What is the average access time (in milliseconds, to the nearest hundredth of a millisecond) for a hard disk which rotates at 5400rpm and has

What is the average access time (in milliseconds, to the nearest hundredth of a millisecond) for a hard disk which rotates at 5400rpm and has an edge-to-edge seek time of 8ms? (Assume that seek time is proportional to the number of tracks to seek.)

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