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List T consists of 30 positive decimals, none of which is an integer, and the sum of the 30 decimals is S. The estimated sum of the 30 decimals, £, is defined as follows. Each decimal in T whose tenths digit is even is rounded up to the nearest integer, and each decimal in T whose tenths digit is odd is rounded down to the nearest integer; E is the sum of the resulting integers. If $\frac{1}{3}$ of the decimals in T have a tenths digit that is even, which of the following is a possible value of E - S ?

I.-16

II.6

III.10
• AI only
• BI and II only
• CI and III only
• DII and III only
• EI,II, and III

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• 所属科目:数学PS
• 题目来源1:OG15-218
• 题目来源2:OG16-222
• 题目来源3:OG17-224
• 题目来源4:OG18-225
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