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.
If each of the segments marked on the board above is of equal length, and if x and y represent the indicated lines on the board, then what is the distance between x and y ？（） (There are twelve inches in a foot).
(1) The board is five feet long.
(2) x is 18 inches from the nearest end of the board.
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：D
解析：
alone is sufficient; there are 10 segments on the board, and the board is 5 feet=60 inches long, so each segment is six inches; there are four segments between x and y, so the distance is 24 inches. (2) alone is sufficient; x is three segments from the near end of the board, so each segment is 18/3 inches=6 inches long; there are four segments between x and y, so the distance is 24 inches.