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GMAT Inequalities is a high-frequency topic in GMAT Quant, but many students struggle because the concepts behave differently from standard algebra. Understanding the right rules, patterns, and edge cases can significantly improve both speed and accuracy.- May 06
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16 Nov 2020, 05:00
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Difficulty:
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88% (00:55) correct
12%
(01:32)
wrong
based on 84
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16 Nov 2020, 07:26
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Just as 9x + 12x + 15x = 36x, here 9(36) + 12(36) + 15(36) = 36(36). So under the root we have 36^2, and taking the square root we get 36.
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16 Nov 2020, 08:04
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[9(36)+12(36)+15(36)]^1/2 = [36(9+12+15)]^1/2 = [36(36)]^1/2 = 36, Option E
