A large barrel is 14--> full of water. How many gallons of water did Tajiri add to the barrel? (1) The barrel’s capacity is twice as many gallons as Tajiri added. (2) Tajiri added twice as many gallons as were already in the barrel.

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.