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Tham khảo tài liệu 'arithmatic english 10', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | QUANTITATIVE PRACTICE TEST 58. Is x y 2z 1 AABC is equilateral. 2 AD 1 BC 59. The circles in the diagram are concentric circles. What is the area of the shaded region 1 The area of the inner circle is 25 . 2 The diameter of the larger circle is 20. 60. Find the value of x. 1 The length of BC is 2V3 . 2 The length of AC is 4. 383 ------------------------------- QUANTITATIVE PRACTICE TEST ---------------------------------------- 61. What is the value of a b 1 a2 b2 13 2 2b a 62. Between what two numbers is the measure of the third side of the triangle 1 The sum of the two known sides is 10. 2 The difference between the two known sides is 6. 63. What is the area of the circle 1 The radius is 6. 2 The circumference is 12 . 64. What is the positive value of z 1 3y z 4 2 z2- z 12 65. Two cars leave the same city traveling on the same road in the same direction. The second car leaves one hour after the first. How long will it take the second car to catch up with the first 1 The second car is traveling 10 miles per hour faster than the first car. 2 The second car averages 60 miles per hour. 66. In right triangle XYZ the mZy 90 . What is the length of XZ 1 The length of YZ 6. 2 m Zz 45 67. Is x 7 x 1 3x 6y 2 y 7 1 68. What is the total cost of six pencils and four notebooks 1 Ten pencils and nine notebooks cost 11.50. 2 Twelve pencils and eight notebooks cost 11.00. 69. What is the ratio of the corresponding sides of two similar triangles 1 The ratio of the perimeters of the two triangles is 3 1. 2 The ratio of the areas of the two triangles is 9 1. 384 ------------------------------ QUANTITATIVE PRACTICE TEST ------------------------------------------- 70. What percent of the class period is over 1 The time remaining is 1 of the time that has passed. 2 The class period is 42 minutes long. 71. Daniel rides to school each day on a path that takes him first to a point directly east of his house and then from there directly north to his school. How much shorter would his ride