Question 486420: ?- Elizabeth is walking from her home to meet her friend Andrew and back again. She walks 2 km uphill, 6 km down hill, and 3 km on level ground. She takes the same route both ways. It takes her 6 hours for a round trip. How far did she walk?
Work- I tried to examine what the problem gave me. She walks 2 km uphill and 6 km down hill, but there was no clarification in the problem that she even walked on a hill. So, the fact that she walks 3 km on level ground is almost as obsolete because there's no guarantee that she walked on a level surface either. I did the work assuming that she would walk an entirely flat surface which is obviously 3x6=18km. If I assume she goes up and down each for an hour and the rest is flat it's 4+12+6=22km. If I find the average speed she walks (3x2x6/3) then I get that she walked 12 km. I feel like I could figure this problem better if I just knew what information from the original problem I am missing.
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Elizabeth is walking from her home to meet her friend Andrew and back again.
She walks 2 km uphill, 6 km down hill, and 3 km on level ground.
She takes the same route both ways.
It takes her 6 hours for a round trip. How far did she walk?
:
They are just asking for the distance which is given as
one way; 2 + 6 + 3 = 11km, both ways would be 22 km
:
Up or down and time are irrelevant
|
|
|
