AP Police Constable Mains 17 Mar 2019 Solved Paper

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 cm², the approximate cost of painting is Rs.