It took me about a week to study for the mass. MPJE, on an off, since it's hard to read dry material continuously. I took it today and it was hard for two reasons. They have a whole bunch of questions where the answer choices are a. I only, b. III only, c. I and III, d. II and III, e. I, II, & III. The second reason is that they get really picky, i.e. which is not true? if someone picks something up, you collect the following information: name, their address, etc. Study the mass. packet and know your federal law well, i.e. all the forms to fill, etc. Sometimes, the only way to answer a question is to think back to your retail experience. Other than that, just hope you picked the right answer.