There, I found it

Assuming all other variables' amounts were correct, b=26/5.

25/6*

Ah, yes, thank you. My calculations were correct, just when I copied down the answer I didn't bother with copy and paste.

Considering the question is messed up and there ISNT a right answer, its actually very hard. Any answer you make you'd have to make some assumption about the question

The problem is not hard because although the question is messed up, they are giving you the answer.