数学练习题1.doc

The Martial Art club has 4 instructors for 16 trainees who have elementary level skills and 2 other instructors for 8 trainees with advanced level skills. What is a trainee to instructor ratio in the club? ?A)????4:1?B)????2:5?C)????30:6?D)????3:5?E)????4:7 Order these fractions from least to greatest:4/3, 8/12, 7/9, 9/27 ?A)????8/12, 7/9, 9/27, 4/3?B)????8/12, 7/9, 4/3, 9/27?C)????7/9, 4/3, 9/27, 8/12?D)????4/3, 9/27, 8/12, 7/9?E)????9/27, 8/12, 7/9, 4/3 What is a volume of a cube with a length of 7 centimeters? ?A)????343?B)????344?C)????345?D)????346?E)????347 Bob had $12,500 in savings last year and received 6 percent interest. How much interest did Bob earn last year? ?A)????$700?B)????$725?C)????$750?D)????$775?E)????$800 Solve for 45 - 3c + 8d if c=2 and d=3. ?A)????53?B)????57?C)????59?D)????61?E)????63 1. What will it cost to carpet a room with indoor/outdoor carpet if the room is 10 feet wide and 12 feet long? The carpet costs 12.51 per square yard. A. $166.80 B. $175.90 C. $184.30 D. $189.90 E. $192.20 2. If the perimeter of a rectangular house is 44 yards, and the length is 36 feet, what is the width of the house? A. 10 yards B. 18 yards C. 28 feet D. 32 feet E. 36 yards 3. What is the volume of the following cylinder? A. 210.91 B. 226.20 C. 75.36 D. 904.32 E. 28.26 4. What is the volume of a cube whose width is 5 inches? A. 15 cubic inches B. 25 cubic inches C. 64 cubic inches D. 100 cubic inches E. 125 cubic inches 5. Sally has three pieces of material. The first piece is 1 yd. 2 ft. 6 in. long, the second piece is 2 yd. 1 ft. 5 in long, and the third piece is 4 yd. 2ft. 8in long. How much material does Sally have? A. 7 yd. 1 ft. 8 in. ?B. 8 yd. 4 ft. 4 in. C. 8 yd. 11 in. D. 9 yd. 7 in. E. 10 yd. 6. A can′s diameter is 3 inches, and its height is 8 inches. What is the volume of the can? A. 50.30 B. 56.55 C. 75.68 D. 113.04 SSAT数学练习――Fractions 1. There are 8 ounces in a 1/2 pound. How many ounces are in 7 3/4 lbs? A. 12 ounc