[求助]天山Math Q3 请教思路 谢谢

zhangling2581

Q3:
Each of the 45 boxes on shelf J weighs less than each of the 44 boxes on shelf K. What is
the median weight of the 89 boxes on these shelves?
(1) The heaviest box on shelf J weighs 15 pounds.
(2) The lightest box on shelf K weighs 20 pounds.
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

himba

J里有45个,最重的是15,每个都比K里的44个轻;由轻到重排序,J里最重的那个就是中值,排在89个中的第45位嘛.答案A

zhangling2581

谢谢版主！！