What is the area of a rectangular garden?
✓ Correct Answer: Option C
Let length be L, width be W. Area = LW. (1) Diagonal^2 = L^2 + W^2 = 13^2 = 169. Not sufficient (many combinations). (2) Perimeter = 2(L+W) = 34, so L+W = 17. Not sufficient. (1)+(2): (L+W)^2 = L^2 + W^2 + 2LW => 17^2 = 169 + 2LW => 289 = 169 + 2LW => 2LW = 120 => LW = 60. Sufficient.
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This 3-level GMAT Exam Prep question from the Data Insights topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.
How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free GMAT Exam Prep practice test or use flashcards for spaced repetition review.