SAT考试数学练习题

　　21. The number of milliliters in 1 liter is

　　A. 10,000

　　B. 1,000

　　C. 0.1

　　D. 0.01

　　E. 0.001

　　22. The cost to ride on a ferry is $5.00 per vehicle and driver with an additional cost of 50 cents per passenger. If the charge to get on the ferry is $6.50, how many people were in the vehicle?

　　A. 1

　　B. 2

　　C. 3

　　D. 4

　　E. 5

　　23. What is 1/9 of 9?

　　A. 1/9

　　B. 0

　　C. 1

　　D. 2

　　E. 3

　　24. In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many will he have to take out of his pocket to ensure that he has taken out at least one of each color?

　　A. 3

　　B. 7

　　C. 8

　　D. 9

　　E. 11

　　25. Which fraction is equal to 0.20%?

　　A. 1/20

　　B. 1/40

　　C. 1/50

　　D. 1/400

　　E. 1/500

　　26. Find the missing term in the following sequence: 4, 9, 19, __, 79

　　A. 36

　　B. 37

　　C. 38

　　D. 39

　　E. 40

　　27. How much money did Jessica's budget allow for housing in April of 2001?

　　A. $617.80

　　B. $620.92

　　C. $622.50

　　D. $626.38

　　E. $633.20

　　28. What was the average amount of money that Jessica's budget allowed for clothing the first six months of 2001?

　　A. $249.90

　　B. $250.40

　　C. $251.32

　　D. $253.33

　　E. $255.75

　　29. If Jessica only spent 20% instead of the 25% allotment for food in May of 2001, how much did she save?

　　A. $131.10

　　B. $144.30

　　C. $148.32

　　D. $152.22

　　E. $153.33

　　30. Jonathan can type a 20 page document in 40 minutes, Susan can type it in 30 minutes, and Jack can type it in 24 minutes. Working together, how much time will it take them to type the same document?

　　A. 5 minutes

　　B. 10 minutes

　　C. 15 minutes

　　D. 18 minutes

　　E. 20 minutes