Question 487218: Katie travels 2 kilometers/hour uphill, 6 kilometers/hour downhill, and 3 kilometers/hour on level ground. She traveled a total of 6 hours to and from Bobby's house. What is her total distance that she walked?
Every time that I tried to figure it out, I got 22 as an answer, but my professor told me that that answer was wrong. Answer by ethan445(1) (Show Source):