UPSC CSAT Numeracy problem 537: Find the arithmetic mean of 12 and 18.
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(12+18)/2=15.0.
Practice UPSC CSAT Numeracy questions with answers and explanations.
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(12+18)/2=15.0.
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Increase/base ×100 = 25%.
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15²+8²=289.
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Area=16×11=176.
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By Vieta, root sum is the coefficient 31.
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(18+17)/2=17.5.
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Increase/base ×100 = 25%.
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(6+19)/2=12.5.
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Increase/base ×100 = 25%.
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The units digit follows from 4³.
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The units digit follows from 1³.
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14²+11²=317.