The circumference of circle X is 12--> the circumference of circle Y. What is the area of circle X? (1) The area of circle Y is 100π ft2-->. (2) The circumference of circle Y is 20π ft-->.

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GMAT Quantitative: Data Sufficiency Practice Test 3 — practice the complete quiz, review flashcards, or try a random question.

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. 


The circumference of circle X is <img><m:mrow><m:mfrac><m:mn>1</m:mn><m:mn>2</m:mn></m:mfrac></m:mrow></m:math>--> the circumference of circle Y. What is the area of circle X? (1) The area of circle Y is <img><m:mrow><m:mn>100</m:mn><m:mi>π</m:mi><m:msup><m:mrow><m:mi mathvariant='normal'> ft</m:mi></m:mrow><m:mn>2</m:mn></m:msup></m:mrow></m:math>-->. (2) The circumference of circle Y is <img><m:mrow><m:mn>20</m:mn><m:mi>π</m:mi><m:mi mathvariant='normal'> ft</m:mi></m:mrow></m:math>-->.