Consider a disk with the following characteristics: block size B = 512 bytes, interblock gap is G = 128 bytes, the number of blocks per track is 20, and the number of tracks per surface is 400. A disk pack consists of 15 double-sided disks and rotates the disks at a speed of 2400 rpm and it has an average seek time of 30 msec. Then,

a. Transfer rate tr in bytes/msec is: tr = bytes per msec.

b. Block transfer time btt in msec is: btt = msec.

c. Average rotational delay rd in msec is: rd = msec.

d. It takes msec to locate and transfer a single block given its block address.