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.
Carrie, Lisa, andBetty all make purchases at a music store that sells all records for a certain price and allCDs for a certain price. How much doesCarrie pay for 1 record and 2CDs
(1) Lisa bought 3 records for $22.50.
(2)Betty bought 2 records and 4CDs for $55.00.
网考网参考答案：B
网考网解析：
alone is insufficient because it tells you only the price per record, and does not give the price of CDs. (2) alone is sufficient, because the quantity of items is twice that of Carrie’s purchase, so the purchase price is therefore half of what Betty paid--$27.50. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>