Dan read a book. He started reading at 7:45 am and ended at 8:27 am. How many minutes did Dan read?

32 minutes
35 minutes
42 minutes
52 minutes

To find the number of minutes Dan read, we need to subtract the starting time from the ending time.

8:27 am - 7:45 am = 42 minutes

Therefore, Dan read for 42 minutes.