I rewrote the question exactly....I think maybe the proration thing is just assumed throughout the book (??) I did it your way the first time too...then looked at the answer, back through the book and found the 90/360 stuff.

This one question is only the beginning of the absurdities of my prof! I wouldn't have time to explain then all if I had a year...and we've only been in class for 1/2 the semester.

You've been a lifesaver though, T&P! Everything is really starting to make a lot of sense now. I'm going to go back and start from the beginning of the chapter and work step by step...with the right information this time. Sorry to distract you from work today...hope the boss didn't catch ya!