Q.1: For the following frequency distribution:Class : 0 – 5 5 – 10 10 – 15 15 – 20 20 – 25 - Q.2: The probability of an impossible event is (A) 1 (B) 1/2 (C) not defined (D) 0 - Q.3: If (3, – 6) is the mid-point of the line segment joining (0, 0) and (x, y), then the point (x, y) is - Q.4: The discriminant of the quadratic equation 4x2 – 6x + 3 = 0 is - Q.5: In the given circle in Figure-1, number of tangents parallel to tangent PQ is - Q.6: 8 cot2 A – 8cosec2 A is equal to - Q.7: The point on x-axis which divides the line segment joining (2, 3) and (6, – 9) in the ratio 1 : 3 is - Q.8: If a pair of linear equations is consistent, then the lines represented by them are - Q.9: The total surface area of a frustum-shaped glass tumbler is (r1 > r2) -