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problems practice phần 10

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 2.5 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 3.23 feet b 3.86 feet c 4 feet d 4.25 feet e 4.44 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 .