Anna walked for 30 minutes. She noticed that she traveled farther
in the first 15 minutes of her walk then in the second 15 minutes.
What can Anna conclude about her walk?
A. She walked over many hills
B. Her average speed was faster during the first half of her walk.
C. She walked in two different directions.
D. She was walking at a constant speed.
Whether there were hills or whether she walked in different directions
doesn't change the distances traveled, and if she had walked at constant
speed, she would have covered the same distance in both 15-minute periods.
So A,C, and D are out. That only leaves B.
That's the only one that makes any sense. She walked faster during the
first 15 minutes, and slower during the second 15-minutes.
Edwin