Free GMAT Practice Question

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ID: GMAT-DS-8
Section: Quantitative Reasoning - Data Sufficiency
Topics: Quadratic Equation; Computation of Value
Difficulty level: Challenging

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If $a^2-4a=0,$ and $b\neq 0,$ is $\dfrac{a}{b}=0?$

  1. $b^2-16=0$
  2. $a^2+8a=0$
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