Free GMAT Practice Question

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ID: GMAT-QR-PS-048
Section: Quantitative Reasoning - Problem Solving (PS)
Topic: Maximum & Minimum value
Difficulty level: Hard

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If $a$ and $b$ are integers such that $-4 \le a \le 6$ and $-2 \le b \le 5$, what is the greatest possible value of $a(b - a)$?

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