If a is a positive whole number, is b also a positive whole number?
(1) The average (arithmetic mean) of a, b + 2, and a - 5 is a.
(2) The average (arithmetic mean) of a and b is NOT a positive whole number.
(1) The average (arithmetic mean) of a, b + 2, and a - 5 is a.
(2) The average (arithmetic mean) of a and b is NOT a positive whole number.
[Reveal] Spoiler:
Shouldn't it be D? Can someone provide detailed analysis with examples. Thanks in advance!