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GMAT02-Key

Tài liệu toán bằng tiếng anh cho các bạn tham khảo ôn thi tốt | GMAT Test 2 Key - Copyright 2005 by Hp Group www.hp-vietnam.com . All right reserved. GMAT TEST 2 - Key for MATH SECTION 37 questions 75 minutes 1. X is an even number and Y is a positive odd number. Which of the following expressions cannot be even a XY Y b X3Y3 C X3 d XY e Y2 The fastest way to solve this problem is by plugging in some numbers. Lets say X 2 Y 1. According to answer e 1 x 1 1 and that must be an odd number. The correct answer is E. 2. How much interest will 2 400 earn at an annual rate of 8 in one year if the interest is compounded every 4 months a 141 b 150 c 197 d 234 e 312 Here it is enough to calculate the simple interest of 8 per year. 2 400 x 8 100 x 1 192. Since we are calculating as a compounded rate the interest should be a bit higher or C as the correct answer. 3. What is the value of P 1 P is even. 2 P is a square of a prime number. a Statement 1 BY ITSELF is sufficient to answer the question but statement 2 by itself is not. b Statement 2 BY ITSELF is sufficient to answer the question but statement 1 by itself is not. c Statements 1 and 2 TAKEN TOGETHER are sufficient to answer the question even though NEITHER statement BY ITSELF is sufficient. d Either statement BY ITSELF is sufficient to answer the question. e Statements 1 and 2 TAKEN TOGETHER are NOT sufficient to answer the question requiring more data pertaining to the problem. Statement 1 alone is insufficient since there is infinite number of possibilities. Statement 2 alone is insufficient since there is an infinite number of primes. Hãy ghé thăm website www.hp-vietnam.com để có thêm nhiều tài liệu tiếng Anh khác GMAT Test 2 Key - Copyright 2005 by Hp Group www.hp-vietnam.com . All right reserved. The combination of the statements is sufficient since the only even square of a prime number is can be 22 which is 4. Both statements taken together are sufficient. The correct answer is C. 4. If AB 40 what is the value of AB A 2B 1 A - B -18. 2 A2B 80. a Statement 1 BY ITSELF is .