题目:

Will the first 10 volumes of a 20-volume encyclopedia fit upright in the bookrack shown above?
(1) x = 50 centimeters
(2) Twelve of the volumes have an average (arithmetic mean) thickness of 5 centimeters.
选项:
A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are NOT sufficient.
答案:
E