GMAT考试

【单选题】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
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 statementALONE、is sufficient.
D、EACH statementALONE、is sufficient.
Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient.
Is 3^x greater than 100
(1) 9x=36
(2)

网考网参考答案：D
网考网解析：
To be able to answer this question, we need to know a numerical value for x, because any numerical value will give a value for 3 x that is either greater or less than 100. (1) gives the value of 4 for x, so it is sufficient (3x=81; it is not greater). (2) can be restated as 100＞3 x , so 3 x cannot be greater than 100, and (2) is sufficient to answer the question. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>