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A 72 b 74 c 75 d 78 e 80 answer q9 if x and y are

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A. 72 B. 74 C. 75 D. 78 E. 80 Answer: ------------------------------------------------------------------------------------------------------------ Q9: If x and y are positive integers and 1 + x + y + xy = 15, what is the value of x + y ? A. 3 B. 5 C. 6 D. 8 E. 9 Answer: ------------------------------------------------------------------------------------------------------------ Q10: If Ann saves x dollars each week and Beth saves y dollars each week, what is the total amount that they save per week? (1) Beth saves $5 more per week than Ann saves per week. (2) It takes Ann 6 weeks to save the same amount that Beth saves in 5 weeks. 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: ------------------------------------------------------------------------------------------------------------ Q11: 3
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If x is a positive integer, is the remainder 0 when 3 x + 1 is divided by 10? (1) x = 4 n + 2, where n is a positive integer. (2) x > 4 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: ------------------------------------------------------------------------------------------------------------ Q12: If r , s , and w are positive numbers such that w = 60 r + 80 s and r + s = 1, is w < 70? (1) r > 0.5 (2) r > s 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: ------------------------------------------------------------------------------------------------------------ Q13: What is the value of the integer n ? (1) n ( n + 2) = 15 (2) ( n + 2) n = 125 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: ------------------------------------------------------------------------------------------------------------ Q14: If a code word is defined to be a sequence of different letters chosen from the 10 letters A , B , C , D , E , F , G , H , I , and J , what is the ratio of the number of 5-letter code words to the number of 4-letter code words? A. 5 to 4 B. 3 to 2 C. 2 to 1 4
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D. 5 to 1 E. 6 to 1 Answer: ------------------------------------------------------------------------------------------------------------ Q15: Which of the following fractions has a decimal equivalent that is a terminating decimal? A. 189 10 B. 196 15 C. 225 16 D. 144 25 E. 128 39 Answer: ------------------------------------------------------------------------------------------------------------ Q16: For any integer k greater than 1, the symbol k * denotes the product of all the fractions of the form t 1 , where t is an integer between 1 and k , inclusive. What is the value of * * 4 5 ? A. 5 B. 4 5 C. 5 4 D. 4 1 E. 5 1 Answer: ------------------------------------------------------------------------------------------------------------ Q17: Company S produces two kinds of stereos: basic and deluxe. Of the stereos produced by Company S last month, 3 2 were basic and the rest were deluxe. If it takes 5 7 as many hours to produce a deluxe stereo as it does to produce a basic stereo, then the number of hours it took to produce the deluxe stereos last month was what fraction of the total number of hours it took to produce all the stereos?
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