What is the average (arithmetic mean) of x and y?
(1) The average (arithmetic mean) of (x + 1) and (y - 1) is equal to the average (arithmetic mean) of x and y.
(2) The average (arithmetic mean) of x, y, and -1 is 1.
Help!!!!
OA is (highlighted below)
B
(1) The average (arithmetic mean) of (x + 1) and (y - 1) is equal to the average (arithmetic mean) of x and y.
(2) The average (arithmetic mean) of x, y, and -1 is 1.
Help!!!!
OA is (highlighted below)
B
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