Điều này là tùy ý để đánh giá B theo chỉ lý do tôi đã đề cập ở đoạn trên. Tương tự như vậy, những lý do này cũng có thể sử dụng khi chúng ta xem xét . Phải thừa nhận rằng, . A. ông cùng | Problem Solving Sample Questions 119. Which of the following is equivalent to the pair of inequalities x 6 10 and x - 3 5 A 2 x 16 B 2 x 4 C 2 x 8 D 4 x 8 E 4 x 16 A -a B -1 a C 0 D 1 a E a 120. David has d books which is 3 times as many as Jeff and 1 as many as Paula. How many books do the 2 three of them have altogether in terms of d A 5 d 6 B 7 d 3 C 10 d 3 D 7 d 2 E 9 d 2 121. There are 8 teams in a certain league and each team plays each of the other teams exactly once. If each game is played by 2 teams what is the total number of games played A 15 B 16 C 28 D 56 E 64 122. An operation 9 is defined by the equation a 9 b a - 7 for all numbers a and b such that a b a -b. If a -c and a 9 c 0 then c 123. The price of lunch for 15 people was including a 15 percent gratuity for service. What was the average price per person EXCLUDING the gratuity A B C D E 124. In Town X 64 percent of the population are employed and 48 percent of the population are employed males. What percent of the employed people in Town X are females A 16 B 25 C 32 D 40 E 52 125. Ifp 1 and p and q are positive integers which of q the following must be greater than 1 A11 B q C p 2q D q p2 E q p 169 The Official Guide for GMAT Review 12th Edition 126. It would take one machine 4 hours to complete a large production order and another machine 3 hours to complete the same order. How many hours would it take both machines working simultaneously at their respective constant rates to complete the order A Ẵ 12 B 11 2 . 5 C 15 7 D 31 2 E 7 127. To mail a package the rate is x cents for the first pound and y cents for each additional pound where x y Two packages weighing 3 pounds and 5 pounds respectively can be mailed separately or combined as one package. Which method is cheaper and how much money is saved A Combined with a savings of x - y cents B Combined with a savings of y - x cents C Combined with a savings of x cents D Separately with a savings of x - y .