Consider a magnetic hard disk with a seek time of 8 ms, a data transfer rate of 500 Kbytes /s and a rotational latency of 3 ms. A disk sector holds 16 Kbytes. What is the average time (in ms) for the disk to serve a request to load 16 Kbytes of data from a disk sector? Give your answer as a base 10 number (and only write down the number). Enter your answer here ms