UPSC CSAT Numeracy problem 523: A rectangle has length 15 cm and breadth 14 cm. Find its area in cm².
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Area=15×14=210.
Practice UPSC CSAT Numeracy questions with answers and explanations.
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Area=15×14=210.
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By Vieta, root sum is the coefficient 33.
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(17+20)/2=18.5.
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Increase/base ×100 = 25%.
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3²+10²=109.
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Area=4×13=52.
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By Vieta, root sum is the coefficient 21.
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Area=9×15=135.
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By Vieta, root sum is the coefficient 28.
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(11+21)/2=16.0.
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Increase/base ×100 = 25%.
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13²+14²=365.