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【正文】 !item!187。058amp。002415 In the figure above, the radius of the circle with center O is 1 and BC = 1. What is the area of triangular region ABC ? (A) √ 2/2 (B) √ 3/2 (C) 1 (D) √ 2 (E) √ 3 12. 1845!item!187。058amp。002416 Last year a certain bond with a face value of $5,000 yielded 8 percent of its face value in interest. If that interest was approximately percent of the bond39。s selling price, approximately what was the bond39。s selling price? (A) $4,063 (B) $5,325 (C) $5,351 (D) $6,000 (E) $6,154 【答案】 E 【思路】 the interest=5,=400 400=selling , selling price=6,154 13. 1898!item!187。058amp。002486 If m lies between the integers p and s on the number line shown, which of the following is a possible value for m ? (A) √ 17 (B) √ 4 (C) (D) 20/4 (E) 10/3 14. 1999!item!187。058amp。002494 (A) 3 (B) 6 (C) 9 (D) 12 (E) 18 15. 2160!item!187。058amp。002594 At a speed of 50 miles per hour, a certain car uses 1 gallon of gasoline every 30 miles. If the car starts with a full 12 gallon tank of gasoline and travels for 5 hours at 50 miles per hour, the amount of gasoline used would be what fraction of a full tank? (A) 3/25 (B) 11/36 (C) 7/12 (D) 2/3 (E) 25/36 16. 2206!item!187。058amp。002619 When [?] of the garments in a shipment were inspected, 18 of the garments passed inspection and the remaining 2 garments failed. How many of the uninspected garments must pass inspection in order that 90 percent of the garments in the shipment pass? (A) 10 (B) 9 (C) 8 (D) 7 (E) 5 17. 2311!item!187。058amp。002635 In a certain board game, a stack of 48 cards, 8 of which represent shares of stock, are shuffled and then placed face down. If the first 2 cards selected do not represent shares of stock, what is the probability that the third card selected will represent a share of stock? (A) 1/8 (B) 1/6 (C) 1/5 (D) 3/23 (E) 4/23 18. 2417!item!187。058amp。002747 3 teaspoons = 1 tablespoon 4 tablespoons = 1/4 cup According to the information above, how many teaspoons are equal to 3/8 cup? (A) 3 (B) 4 (C) 9 (D) 12 (E) 18 19. 2463!item!187。058amp。002761 For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1, 3, 2, 5, 4, 6 ? (A) One (B) Two (C) Three (D) Four (E) Five 【答案】 C 【思路】題目 What is the number of variations in sign for the sequence,所以題目已經(jīng)給 sequence,不用再排序 ,variation:當(dāng)下個(gè)一數(shù)字正負(fù)號與自己不同時(shí) ,則算一次 故 (1,3)(3,2)(5,4),共三次 20. 2563!item!187。058amp。002787 It takes Carlos 9 minutes to drive from home to work at an average rate of 22 miles per hour. How many minutes will it take Carlos to cycle from home to work along the same route at an average rate of 6 miles per hour? (A) 26 (B) 33 (C) 36 (D) 44 (E) 48 【答案】 B 【思路】 ta ndis cespeed tim e? 先求 Carlos home to work的距離 d, carlos花了 9分鐘以速率 22miles/per hour, 229 dd??,若 carlos騎 cycle 6 60 time? time=33 21. 2609!item!187。058amp。002849 If a = 1 and b = 2, then (2a^2 + b)(x + y) + (a + b)(x y) = (A) 0 (B) 2x (C) y x (D) x y (E) x + y 【答案】 C 【思路】 ? ?2( 2 ) ( ) ( ) ( )2 1 ( 2) ( ) (1 2) ( )0 ( 1 ) ( )a b x y a b x yx y x yxyyx? ? ? ? ?? ? ? ? ? ? ? ?? ? ? ??? 22. 2710!item!187。058amp。002886 The formula F = 9C/5 + 32 gives the relationship between the temperature in degrees Fahrenheit, F, and the temperature given in degrees Celsius, C. If the temperature is 85 degrees Fahrenheit, what is the temperature, to the nearest degree, in degrees Celsius? (A) 18 (B) 23 (C) 29 (D) 47 (E) 51 【答案】 C 【思路】 932598 5 3 259 2 6 5 , 2 9 .4 4 4 4CFCCC?????? 23. 2976!item!187。058amp。003069 [?] For the 5 days shown in the graph, how many kilowatthours greater was the median daily electricity use than the average (arithmetic mean) daily electricity use? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5 24. 3022!item!187。058amp。003084 In a certain game, the units of currency of three countries are the crown, the shield, and the pound, respectively. If 2 crowns equal 3 shields and 3 shields equal 4 pounds, how many crowns equal 18 pounds? (A) 9 (B) 16 (C) 18 (D) 32 (E) 36
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