SAT考试Grid-in练习题3

　　Question 1: If ab = 2a - 3b for all real numbers a and b, what is 2?

　　Question 2: A regular polygon has 6 sides. What is the degree measure of the angle, within the polygon, between any two sides?

　　Question 3: A cubic box has sides of length a and another cubic box has sides of length 3a. How many boxes A could fit into a single box B?

　　Question 4: If a two-sided coin is flipped 4 times, what is the probability that at least one head will show up?

　　Question 5: What is the value of / ?

　　Question 6: Side AB of the ABCD square is 10, AE = ED and BF = FC. What is the ratio between the area of parallelogram BFDE and the area of triangle AEB?

　　Question 7: If 15% of x is 45, what is 20% of x?

　　Question 8: Given the | x - 3 | = 5 equation, what is the average of its solutions?

　　Question 9: In the x, y plane, what is the area of the quadrilateral delimited by the x axis, the y axis, the x = 5 line and the y = -5 line?

　　Question 10: If the average of x and y is 3, what is the average of x, y and 6?