Tutorial 3 Question 4

[Boosaiyan]

When i am trying to copy .doc files from "letters" directory to misc directory shell says "target Misc is not a directory".
Moreover when i try to change directory from letters to work it does not allows me to do so shell says " No such file or directory"
I get the same error message when i try to go from Misc directory to Work directory .

Can anyone help me where i am going wrong ?