The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.
What was the percent decrease in the price of MegaTek (MGTK) stock during the market decline of March 1, 2001, to March 1, 2002 ？（）
(1) The price of MGTK was $56.20 on March 1, 2001.
(2) The price of the stock on January 1, 2002, was only one-quarter of its price as of March 1, 2001.
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.
参考答案：E
解析：
alone is insufficient because it gives only the value at the starting point of the period in question. (2) alone is insufficient because the price as of January 1, 2002, is irrelevant to the question. Combining the two statements yields no new insights.
