math.30

# Q21 in the xy plane what is the x intercept of a

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Q21:

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In the xy-plane, what is the x-intercept of a certain line? (1) The line passes through the point (0,2). (2) The y-intercept of the line is 2. 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: ---------------------------------------------------------------------------------------------------------------------- Q22: B A What is the volume of the cube above? (1) The surface area of the cube is 600 square inches. (2) The length of diagonal AB is 10√3 inches. ---------------------------------------------------------------------------------------------------------------------- Q23: (0.8) -5 / (0.4) -4 = A. 3/32 B. 5/64 C. 1/2 D. 1 E. 2
---------------------------------------------------------------------------------------------------------------------- Q24: By what percent was the price of a certain television set discounted for a sale? (1) The price of the television set before it was discounted for the sale was 25 percent greater than the discounted price. (2) The price of the television set was discounted by \$60 for the sale. ---------------------------------------------------------------------------------------------------------------------- Q25: For a certain race, 3 teams were allowed to enter 3 members each. A team earned 6 – n points whenever one of its members finished in nth place, where 1 ≤ n ≤ 5. There were no ties, disqualifications, or withdrawals. If no team earned more than 6 points, what is the least possible score a team could have earned? ---------------------------------------------------------------------------------------------------------------------- Q26: Is x < y ? (1) The ratio of x to y is 7/9. (2) xy > 0 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: ---------------------------------------------------------------------------------------------------------------------- Q27: For each landscaping job that takes more than 4 hours, a certain contractor charges a total of r dollars for the first 4 hours plus 0.2 r dollars for each additional hour or fraction of an hour, where

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r > 100. Did a particular landscaping job take more than 10 hours? (1) The contractor charged a total of \$288 for the job. (2) The contractor charged a total of 2.4 r dollars for the job. ----------------------------------------------------------------------------------------------------------------------
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• Spring '12
• Krugers
• Natural number, car sales, Lou own

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