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A hard disk has the following parameters:

no of tracks=500

no of sectors/tracks=100

no of bytes/sector=500

time taken by the head to move from one track to adjacent track =1ms

Rotation speed =600rpm

What is the average time taken for transferring 250bytes from the disk?

a)300.5ms                                          b)255.5ms

c)255ms                                              d)300ms

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