jcmsolis
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People should avoid taking the antacid calcium carbonate in doses larger than half a gram, for despite its capacity to neutralize stomach acids, calcium carbonate can increase the calcium level in the blood and thus impair kidney function. Moreover, just half a gram of it can stimulate the production of gastrin, stomach hormone that triggers acid secretion. Which one of the following is most strongly supported by the information above? (A) Cessation of gastrin production is a more effective method of controlling excess stomach acid than is direct neutralization of stomach acid. (B) People who avoid taking more than half a gram of calcium carbonate are less likely than average to suffer from impaired kidney function. © Doses of calcium carbonate smaller than half a gram can reduce stomach acid more effectively than much larger doses do. (D) Half a gram of calcium carbonate can causally contribute to both the secretion and the neutralization of stomach acids. (E) Impaired kidney function may increase the level of calcium in the blood. :hmm:
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Sorry, I should have edited it. The question is from Manhattan and is within 700+ abilities.
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In a certain sequence, every term after the first is determined by multiplying the previous term by an integer constant greater than 1. If the fifth term of the sequence is less than 1000, what is the maximum number of nonnegative integer values possible for the first term? A) 60 B) 61 C) 62 D) 63 E) 64 :hmm:
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Martha takes a road trip from point A to point B. She drives x percent of the distance at 60 miles per hour and the remainder at 50 miles per hour. If Martha's average speed for the entire trip is represented as a fraction in its reduced form, in terms of x, which of the following is the numerator? (A) 110 (B) 300 © 1,100 (D) 3,000 (E) 30,000
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The infinite sequence a1, a2,…, an,… is such that a1 = 3, a2 = -1, a3 = 6, a4 = -2, and an = an-4 for n > 4. What is the sum of the first 83 terms of the sequence? A. 120 B. 124 C. 128 D. 132 E. 136 :hmm:
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The ancient Nubians inhabited an area in which typhus occurs, yet surprisingly few of their skeletons show the usual evidence of this disease. The skeletons do show deposits of tetracycline, an antibiotic produced by a bacterium common in Nubian soil. This bacterium can flourish on the dried grain used for making two staples of the Nubian diet, beer and bread. Thus, tetracycline in their food probably explains the low incidence of typhus among ancient Nubians. Which of the following is an assumption on which the argument relies? A. Infectious diseases other than typhus to which the ancient Nubians were exposed are unaffected by tetracycline. B. Tetracycline is not rendered ineffective as an antibiotic by exposure to the processes involved in making bread and beer. C. Typhus cannot be transmitted by ingesting bread or beer contaminated with the infectious agents of this disease. D. Bread and beer were the only items in the diet of the ancient Nubians which could have contained tetracycline. E. Typhus is generally fatal.
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C is my answer. What is the source of this question? OA please.
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The sum of all the digits of the positive integer q is equal to the three-digit number x13. If http://www.manhattangmat.com/images/Challenge/May22005/ee1.gif, what is the value of n? (A) 24 (B) 25 © 26 (D) 27 (E) 28
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If x is the product of the positive integers from 1 to 8, inclusive, and if i, k, m, and p are positive integers such that x = 2^i 3^k 5^m 7^p, then i + k + m + p = A. 4 B. 7 C. 8 D. 11 E. 12
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The mode of a set of integers is x. What is the difference between the median of this set of integers and x ? (1) The difference between any two integers in the set is less than 3. (2) The average of the set of integers is x. (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. © 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.
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You have a six-sided cube and six cans of paint, each a different color. You may not mix colors of paint. How many distinct ways can you paint the cube using a different color for each side? (If you can reorient a cube to look like another cube, then the two cubes are not distinct.) (A) 24 (B) 30 © 48 (D) 60 (E) 120
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In a certain sequence, every term after the first is determined by multiplying the previous term by an integer constant greater than 1. If the fifth term of the sequence is less than 1000, what is the maximum number of nonnegative integer values possible for the first term? A) 60 B) 61 C) 62 D) 63 E) 64
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Is x divisible by 30? (1) x = k(m^3 - m), where m and k are both integers > 9 (2) x = n^5 - n, where n is an integer > 9 (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. © 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.
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If 'n' and 'y' are positive integers and 450y=n^3, which of the following must be an integer? I. y/(3 x 2^2 x 5) II. y/(3^2 x 2 x 5) III. y/(3 x 2x 5^2) a)none b) I only c)II only d)III only e) I,II, and III
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A certain established organization has exactly 4096 members. A certain new organization has exactly 4 members. Every 5 months the membership of the established organization increases by 100 percent. Every 10 months the membership of the new organization increases by 700 percent. New members join the organizations only on the last day of each 5- or 10-month period. Assuming that no member leaves the organizations, after how many months will the two groups have exactly the same number of members? (A) 20 (B) 40 © 50 (D) 80 (E) 100