AP Police Constable Mains 2019 Previous Year Paper (17-Mar-2019)

A decorative toy is made up of a solid cube with an inverted hemisphere surmounted totally on its top. The edge of the base cube is 5 cm and the circular base of the hemisphere fixed on the top has a diameter of 4.2 cm. If the entire surface of the toy is to be painted at the rate of Rs. 2 per cm ², the approximate cost of painting is Rs.

A corn cob which is in the shape of a cone has the radius of its broadest end as 2.1 cm and is of length 20 cm. If each square cm. of the surface of the cob caries on an average four grains, then the number of grains on the entire corn cob is approximately

The perimeters of the bases of a cylinder, a cone and a hemisphere are each equal to 22 cm. The cone and the hemisphere are attached to the circular ends of the cylinder on its top and bottom respectively. If the height of the cylinder is 6.5 cm and the total height of the structure is 12.8 cm, then the volume (V) of the entire structure (in cm) is approximately

If a copper rod of diameter 1 cm and length 8 cm is drawn into a wire of length 18 meters of uniform thickness, then the thickness of that wire (in cms) is

A solid metal sphere of radius 6 cm is melted and a hollow cylinder of uniform thickness is formed from it. If the external radius of the base of the cylinder is 4 cm and if its height is 72 cms, the uniform thickness of the cylinder (in cm) is