Do you know all that you need to know about the GMAT and GRE? Many b-school-bound students are scratching their heads over the differences, similarities, as well as school preferences of both exams. Thankfully, nowadays MBA programs will accept either test for admittance purposes, but that still doesn't answer a lot of important questions. We fill you in on all that you need to know, spanning topics such as cost, verbal and quant differences, as well as scoring.