A certain hard disk rotates at 6000 rpm. It has 1KB per sector and 64 sectors per track and has a seek time of 5ms. The time required to read 800 successive sectors is?
800 successive sectors means 12 complete tracks and 32 sectors of the 13th track.
(this is not random 800 sectors that we can just multiply by 800 , with tseek+trot+ttrans).