TAILIEUCHUNG - Barron's How to Prepare for the SAT 23rd Edition (2008) _06

Tham khảo tài liệu 'barron's how to prepare for the sat 23rd edition (2008) _06', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Answer Key 439 13. Karen played a game several times. She received 5 every time she won and had to pay 2 every time she lost. If the ratio of the number of times she won to the number of times she lost was 3 2 and if she won a total of 66 how many times did she play this game 14. Each of the 10 players on the basketball team shot 100 free throws and the average number of baskets made was 75. When the highest and lowest scores were eliminated the average number of baskets for the remaining 8 players was 79. What is the smallest number of baskets anyone could have made Answer Key 1. B 3. E 2. E 4. D 5. A 6. B 0 0 0 0 o 0 0 0 o 7. D 8. A 9. E 10. C 15. In an office there was a small cash box. One day Ann took half of the money plus 1 more. Then Dan took half of the remaining money plus 1 more. Stan then took the remaining 11. How many dollars were originally in the box 0 0 o 0 0 @ 6 0 0 0 o o @ 12. 72 0 o o o @ 13. 3 0 14. 1 8 15. 5 0 0 0 0 0 0 0 0 o o o o o o o o @ @ @ 440 Reviewing Mathematics Answer Explanations 1. B. Judy s average rate of reading is determined by dividing the total number of pages she read 200 by the total amount of time she spent 100 5 reading. In the afternoon she read for -60 - 3 100 5 hours and in the evening for -40 - 2 hours Let x number of students earning 100 then 85 - x number of students earning 75. Then 100x 75 85 - x 85 85 - 100x 6375 - 75x 25x - 6375 85 85 7225 25x - 6375 850 25x x 34. 2. E. 3. E. 4. D. for a total time of 5 5 10 15 25 - - r hours. 3 2 6 6 6 Her average rate was 8 . 25 6 200 200 X 48 pages per hour. 6 25 1 Let the five consecutive integers be n n 1 n 2 n 3 n 4. Then S n n 1 n 2 n 3 n 4 S-10 5n 10 5n S - 10 n -5 . . S -10 . . Choice A - is the smallest of the integers the largest is S -10. S -10 20 S 10 n 4 5 . 4 . y If b is the number of blue marbles there are 3 a V b white ones and b b red ones. 4 5 14 5 Then __ 3 3 5 3 35 47 470 b 3 b 3 b b 11 3 3 47 b 4 5 I 45 20 47 _ 20 so b 470 470 X 20 200. 20 47 1 Let x .

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