2. 职称英语
  3. The average (arithmetic mean) of x and yQuantity A: s+2Quantity B: y-1A、Quanti

The average (arithmetic mean) of x and yQuantity A: s+2Quantity B: y-1A、Quanti

游客2024-01-12  10
问题 The average (arithmetic mean) of x and y
Quantity A: s+2
Quantity B: y-1
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案 B
解析 Quantity A-Quantity B=(x+y)/2-(y-1)=(x-y+2)/2，根据x＜y-2，得x-y+2＜0，差为负数，所以Quantity A＜Quantity B，故答案为B。
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