Tham khảo tài liệu 'problems practice phần 10', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 2. Water has been poured into an empty rectangular tank at the rate of 8 cubic feet per minute for minutes. The length of the tank is 3 feet and the width is one half of the length. Approximately how deep is the water in the tank a feet b feet c 4 feet d feet e feet 3. What is the sum of 11 consecutive integers 1 The median of the 11 integers is 6. 2 The average of the 11 integers is 6. 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. 4. X Y and Z are three positive integers. If Z 2 what is their sum X - Y 5. 3Y 15 3X. 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. 5. Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2 years Roy will be twice as old as Erik then in 2 years what would be Roy s age multiplied by Iris s age a 8 b 28 c 48 d 50 e 52 6. An investment yields an interest payment of 228 each month. If the simple annual interest rate is 9 what is the amount of the investment a 28 300 b 30 400 c 31 300 d 32 500 e 35 100 7. In a rectangular coordinate system what approximately is the area of a .
