GMAT考试Problem Solving复习资料参考.doc

PP- Problem Solving1 (PS1) 完整詳解版 V2.0 Practice Test #1 Problem Solving (196 Questions) 1. 409-!-item-!-187;#058 A grocery store purchased crates of 40 oranges each for $5.00 per crate and then sold each orange for $0.20. What was the stores gross profit on each crate of oranges? (A) $3.00 (B) $6.00 (C) $8.00 (D) $10.00 (E) $13.00 【答案】A 【思路】revenue=cost+profit, 假設X為 the stores gross profit on each crate of oranges 0.2x40 (sold each orange for $0.20)=5( per crate)+X 8=5+X, X=3 2. 455-!-item-!-187;#058 The product P of two prime numbers is between 9 and 55. If one of the prime numbers is greater than 2 but less than 6 and the other is greater than 13 but less than 25, then P = (A) 15 (B) 33 (C) 34 (D) 46 (E) 51 【答案】E 【思路】前提是p是兩個”質數”的乘積 one of the prime numbers is greater than 2 but less than 6 包含3,5 the other is greater than 13 but less than 25 包含 17,19,23 p 可能為51,57,69,85,95,115 (又9p55),故答案 E 3. 664-!-item-!-187;#058 A certain taxi company charges $3.10 for the first [?] of a mile plus $0.40 for each additional of a mile. What would this company charge for a taxi ride that was 8 miles long? (A) $15.60 (B) $16.00 (C) $17.50 (D) $18.70 (E) $19.10 4. 765-!-item-!-187;#058 In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack? (A) 38 (B) 36 (C) 35 (D) 34 (E) 32 【答案】D 【思路】上面數下來第20個剛好在由下往上數第16個的下面→上面數下來第20個是下面數來第15個 （下面有14個,上面有19個,在加上中心點那一個 19+14+1＝34 5. 812-!-item-!-187;#058 If , then m = (A) 17 (B) 18 (C) 34 (D) 35 (E) 36 6. 859-!-item-!-187;#058 The value of is closest to which of the following? (A) 1 (B) 10 (C) 102 (D) 103 (E) 104 7. 905-!-item-!-187;#058 For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100) + 1, then p is (A) between 2 and 10 (B) between 10 an