GMAT考试由数学、阅读和写作三部分。因此数学也是考试的重要内容。如果大家数学拿到高分成绩,那么对于我们GMAT整体分数的提升,会有很大的帮助。下面小编为大家整理了“GMAT管卫东GWD数学Math30套之第七套【附答案】”详细的内容,供大家参考!

  Q1:

  A student’s average (arithmetic mean) test score on 4 tests is 78. What must be the student’s score on a 5th test for the student’s average score on the 5 tests to be 80?

  A. 80

  B. 82

  C. 84

  D. 86

  E. 88

  Q2:

  If 2 different representatives are to be selected at random from a group of 10 employees and if p is the probability that both representatives selected will be women, is p > ?

  (1) More than of the 10 employees are women.

  (2) The probability that both representatives selected will be men is less than .

  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.

  Q3:

  Material A costs $3 per kilogram, and material B costs $5 per kilogram. If 10 kilograms of material K consists of x kilograms of material A and y kilograms of material B, is x > y?

  (1) y > 4

  (2) The cost of the 10 kilograms of material K is less than $40.

  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.

  Q4:

  For a recent play performance, the ticket prices were $25 per adult and $15 per child. A total of 500 tickets were sold for the performance. How many of the tickets sold were for adults?

  (1) Revenue from ticket sales for this performance totaled $10,500.

  (2) The average (arithmetic mean) price per ticket sold was $21.

  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.

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