CAT QA MCQ problem 31: A rectangle has length 16 cm and breadth 20 cm. Find its area in cm².
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Area=16×20=320.
Practice CAT Quantitative Ability MCQ questions with answers and explanations.
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Area=16×20=320.
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By Vieta, root sum is the coefficient 21.
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(18+7)/2=12.5.
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Increase/base ×100 = 25%.
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The units digit follows from 6³.
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Area=10×21=210.
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By Vieta, root sum is the coefficient 16.
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(12+8)/2=10.0.
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Increase/base ×100 = 25%.
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By Vieta, root sum is the coefficient 23.
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(17+10)/2=13.5.
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Increase/base ×100 = 25%.