a word makes all the difference

planned to study when i woke up this morning,suddenly i remembered dat i have an econs assignment dat need to be done ...after flipping through the notes...i then began to write down the question and attempt to do it .. i spend almost an hour to finish the first page.. the more i do.. the more i feel dat i'm stuck and duno how to continue with the assignment... therefore, i asked matt... eh how to do the question a ?i dun seem to know how ...:P and only to know that i ve wrote down the question wrongly, well the question was correct.. but i mistakenly wrote interest rates instead of inflation.. oh my...wasted such a long time there..