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# A 6 1 b 9 2 c 11 6 d 16 9 e 4 3 answer q18 a

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A. 6 1 B. 9 2 C. 11 6 D. 16 9 E. 4 3 Answer: ------------------------------------------------------------------------------------------------------------ Q18: A scientist recorded the number of eggs in each of 10 birds’ nests. What was the standard deviation of the numbers of eggs in the 10 nests? (1) The average (arithmetic mean) number of eggs for the 10 nests was 4. (2) Each of the 10 nests contained the same number of eggs. 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: 6

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------------------------------------------------------------------------------------------------------------ Q19: If p , r , s , and t are nonzero integers, is r p = t s ? (1) s = 3 p and t = 3 r . (2) 3 p = 2 r and 3 s = 2 t . 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: ------------------------------------------------------------------------------------------------------------ Q20: If a 1 = 1 and a n + 1 = 1 + n a 1 for all n ≥ 1, what is the value of a 5 ? A. 8 3 B. 8 5 C. 5 8 D. 3 5 E. 3 8 Answer: ------------------------------------------------------------------------------------------------------------ Q21: A toy store’s gross profit on a computer game was 10 percent of the cost of the game. If the store increased the selling price of the game from \$44 to \$46 and the cost of the game remained the same, then the store’s gross profit on the game after the price increase was what percent of the cost of the game? A. 10.5% B. 11% C. 12.5% D. 13% E. 15% Answer: ------------------------------------------------------------------------------------------------------------ Q22: 7
Four extra-large sandwiches of exactly the same size were ordered for m students, where m > 4. Three of the sandwiches were evenly divided among the students. Since 4 students did not want any of the fourth sandwich, it was evenly divided among the remaining students. If Carol ate one piece from each of the four sandwiches, the amount of sandwich that she ate would be what fraction of a whole extra-large sandwich? A. ) 4 ( 4 - + m m m B. ) 4 ( 4 2 - - m m m C. ) 4 ( 4 4 - - m m m D. ) 4 ( 8 4 - - m m m E. ) 4 ( 12 4 - - m m m Answer: ------------------------------------------------------------------------------------------------------------ Q23: When the wind speed is 9 miles per hour, the wind-chill factor w is given by w = -17.366 + 1.19 t , where t is the temperature in degrees Fahrenheit. If at noon yesterday the wind

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A 6 1 B 9 2 C 11 6 D 16 9 E 4 3 Answer Q18 A scientist...

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