We have been learning in class (and for homework) for the past 2 weeks how to draw up a petty cash book (imprest). Now I have been given 2 mock exams for unit 2 to do for homework this week and they are completely different to what we have been learning. Has anyone else found this? The mok exams are not using the imprest system so I am not balancing to the same amount as I started with and there are far more b/d and c/d than on the imprest system. Help!!