题目内容
（请给出正确答案）
If y is the average (arithmetic mean) of n consecutive positive integers, n＞l, what is the sum of the greatest and least of these integers？
A．2y
B．ny
C．y/2
D．y/n
E．2n/y
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更多“If y is the average （arithmeti…”相关的问题
If the average (arithmetic mean) of x and y is 40, and z-x=60, what is the average of y and z？
A．20
B．50
C．65
D．70
E．140
What is the average (arithmetic mean) of x and y？
(1) The average of x+3 and y+5 is 14.
(2) The average of x, y, and 16 is 12.
The average of x and y is 16 and the average of x, y, and z is What is the value of z？
A．16
B．22
C．34
D．45
E．66
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