The Venn diagram shows the enrollment of 400 college students in one or more of three classes: mathematics, English, and physics. What percent of the students are taking only mathematics or only physics and no other class? (1) Of the 400 students, 240 are taking English. (2) Of the 400 students, 190 are taking mathematics and 140 are taking physics.

Data Sufficiency questions are exclusive to the GMAT.

Each Data Sufficiency question poses a question, followed by two statements. Your task is to evaluate the statements to determine at what point there is or is not sufficient information to answer the question.

Unlike the Problem Solving questions, you do not actually have to answer the question posed. Instead, you select one of five fixed answer choices that offer different options about the sufficiency of the information provided in the two statements.