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Algebra forms the backbone of the CAT Quantitative Ability section. Mastering Quadratic Equations and the Progression series (AP, GP, HP) requires moving beyond rote memorization to understanding the underlying properties and constraints.
3 Replies
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HP questions are almost always solved by converting them into AP. Seriously, just take the reciprocals immediately and save yourself the headache of dealing with fractions
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The quadratic stuff is easy until they start asking for integer solutions or common roots between two equations. Don't just learn the formula for the roots know how to form an equation if you're given the roots.
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"People often overlook theย AM > GM > HM inequality. In CAT, a lot of optimization questions can be solved in seconds using this instead of differentiating or brute-forcing values
