7. What is the volume of the largest sphere that can be curved out of a cube of edge 3 cm? (1) 9p cu cm (2) 6 p cu cm (3) 4.5 p cu cm (4) 3 p cu cm cds test papers sample 8. If the ratio of the diameters of two spheres is 3:5, then what is the ratio of their surface area? (1) 9:25 (2) 9:10 (3) 3:5 (4) 27:125 9. What is the height of a solid cylinder of radius 5 cm and total surface area is 660 sq cm? (1) 10 cm (2) 12 cm (3) 15 cm (4) 16 cm 10. The diameter of base of a right circular cone is 7 cm and slant height is 10 cm, then what is its lateral surface area? (1) 110 sq cm (2) 100 sq cm (3) 70 sq cm (4) 49 sq cm

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