Q20 the sum of all the integers k such that 26 k 24

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Q20: The sum of all the integers k such that –26 < k < 24 is A. 0 B. -2 C. -25 D. -49 E. -51 Answer: ------------------------------------------------------------------------------------------------------------ Q21: A wholesaler bought 1,200 radios for $18 each. The wholesaler sold 60 percent of the radios for $30 each and the rest for $15 each. What was the wholesaler’s average (arithmetic mean) profit per radio? ------------------------------------------------------------------------------------------------------------ Q22: A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office. In how many ways can the company assign 3 employees to 2 different offices? ------------------------------------------------------------------------------------------------------------ Q23: B C 7 O
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A D In the figure shown, what is the area of the circular region with center O and diameter BC ? (1) BC / AB = 3/4 (2) BD = 25 ------------------------------------------------------------------------------------------------------------ Q24: Is │ x │=│ y │? (1) x - y = 6 (2) x + y = 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: ------------------------------------------------------------------------------------------------------------ Q25: If the number 52,1 n 9, where n represents the tens digit, is a multiple of 3, then the value of n could be which of the following? ------------------------------------------------------------------------------------------------------------ Q26: If r , s , and t are positive integers, is r + s + t even? (1) r + s is even. (2) s + t is even. 8
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------------------------------------------------------------------------------------------------------------ Q27: In the xy -plane, is the slope of line k positive? (1) Line k passes through the points (-1, -7) and (2, 5). (2) Line k has equation y = 4 x – 3. ------------------------------------------------------------------------------------------------------------
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