GMAT - Math Section T12 (Ôn thi FPT)

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Math Section ------------------------------------------------------------------------------------------------------------ Q1: A certain company’s profit in 1996 was 15 percent greater than its profit in 1995, and its profit in 1997 was 20 percent greater than its profit in 1996. The company’s profit in 1997 was what percent greater than its profit in 1995? A. 5% B. 18% C. 33% D. 35% E. 38% Answer: ------------------------------------------------------------------------------------------------------------ Q2: If every car sold last week at a certain used-car dealership was either a coupe or a sedan, what was the average (arithmetic mean) sale price for all the cars that were sold at the dealership last week? (1) The average sale price for the sedans that were sold at the dealership last week was $10,600. (2) The average sale price for the coupes that were sold at the dealership last week was $8,400. 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 TOGETHERare sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONEis sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q3: Pat, Kate, and Mark charged a total of 162 hours to a certain project. If Pat charged twice as much time to the project as Kate and 1/3 as much time as Mark, how many more hours did Mark charge to the project than Kate? A. 18 B. 36 C. 72 D. 90 E. 108 Answer: ------------------------------------------------------------------------------------------------------------ Q4: What is the greatest prime factor of 2100 - 296? 1 ThiNganHang.com

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A. 2 B. 3 C. 5 D. 7 E. 11 Answer: ------------------------------------------------------------------------------------------------------------ Q5: If b, c, and d are constants and x2 + bx + c = (x + d)2 for all values of x, what is the value of c? (1) d = 3 (2) b = 6 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 TOGETHERare sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONEis sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q6: If a, b, k, and m are positive integers, is ak a factor of bm? (1) a is a factor ofb. (2) k = m 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 TOGETHERare sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONEis sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q7: A certain university will select 1 of 7 candidates eligible to fill a position in the mathematics department and 2 of 10 candidates eligible to fill 2 identical positions in the computer science department. If none of the candidates is eligible for a position in both departments, how many different sets of 3 candidates are there to fill the 3 positions? A. 42 B. 70 C. 140 D. 165 E. 315 Answer: 2 ThiNganHang.com

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------------------------------------------------------------------------------------------------------------ Q8: R S T Q U X P V W Note: Figure not drawn to scale. In the figure above, the area of square region PRTV is 81, and the ratio of the area of square region XSTUto the area of square region PQXW is 1 to 4. What is the length of segmentRS? A. 5 B. 5.5 C. 6 D. 6.5 E. 7 Answer: ------------------------------------------------------------------------------------------------------------ Q9: If the average (arithmetic mean) of four different numbers is 30, how many of the numbers are greater than 30? (1) None of the four numbers is greater than 60. (2) Twoof the four numbers are 9 and 10, respectively. 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 TOGETHERare sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONEis sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q10: If each of the students in a certain mathematics class is either a junior or a senior, how many students are in the class? (1) If one student is to be chosen at random from the class to attend a conference, the probability that the student chosen will be a senior is 4/7. (2) There are 5 more seniors in the class than juniors. 3 ThiNganHang.com

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