2. Last week, Donald Duck drove his car from Duckton to Drake City. He had a dinner date with his girlfriend, Daisy, and he didn't want to be late. Traveling at a uniform speed, he was one-eighth of the way to his destination by 2:00 P.M. At 5:00 P.M. he was three-fourths of the way.
What fractional part of his trip had he traveled by 4:00 P.M.