Q28 last sunday a certain store sold copies of

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Q28: Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day. If r percent of the store’s revenues from newspaper sales was from Newspaper A and if p percent of the newspapers that the store sold were copies of newspaper A , which of the following expresses r in terms of p ? A. 100 p / (125 – p ) B. 150 p / (250 – p ) C. 300 p / (375 – p ) D. 400 p / (500 – p ) E. 500 p / (625 – p ) Answer: ------------------------------------------------------------------------------------------------------------ Q29: The membership of a committee consists of 3 English teachers, 4 Mathematics teachers, and 2 Social Studies teachers. If 2 committee members are to be selected at random to write the committee’s report, what is the probability that the two members selected will both be English teachers? F. 2/3 G. 1/3 H. 2/9 9
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I. 1/12 J. 1/24 Answer: ------------------------------------------------------------------------------------------------------------ Q30: Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy? (1) She bought $4.40 worth of stamps. (2) She bought an equal number of $0.15 stamps and $0.29 stamps. ------------------------------------------------------------------------------------------------------------ Q31: In the coordinate plane, a circle has center (2, -3) and passes through the point (5, 0). What is the area of the circle? ------------------------------------------------------------------------------------------------------------ Q32: If x /600 = y /300, is y equal to 1,000? (1) x + y = 3,000 (2) 3 x = 6,000 ------------------------------------------------------------------------------------------------------------ Q33: Enrollment in City College in 1980 was 83 percent of enrollment in 1990. What was the percent increase in the college’s enrollment from 1980 to 1990? 10
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A. 10% B. 16 % C. 20% D. 25% E. 183 % Answer: ------------------------------------------------------------------------------------------------------------ Q34: Professor Vásquez gave a quiz to two classes. Was the range of scores for the first class equal to the range of scores for the second class? (1)In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70. (2) In each class, the average (arithmetic mean) score on the quiz was 85. 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. Answer: ------------------------------------------------------------------------------------------------------------
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