Let C be a circle with centre P0 and AB be a diameter of C. Suppose P1 is the mid point of the line segment P0 B, P2 is the mid point of the line segment P1B and so on. Let-C1, C2, C3, ...be circles with diameters P0 P1, P1 P2 , P2 P3 ...respectively. Suppose the circles C1, C2, C3, are all shaded. The ratio of the area of the unshaded portion of C to that of the original circle C is
Correct Answer : D
How many international airports of type ‘A’ account for more than 40 million passengers
Given that -1 ? v ? 1, -2 ? u? -0.5 and -2 ? z ? -0.5 and w = vz/u, then which of the following is necessarily true?
Let A and B be two solid spheres such that the surface area of B is 300% higher than the surface area of A. The volume of A is found to be k% lower than the volume of B. The value of k must be