Surface Areas a...

The curved surface area of a cylinder and a cone is equal. If their base radius is same, then the ratio of the slant height of the cone to the height of the cylinder is

If the ratio of the radii of bases of two cones is 3 : 1 and the ratio of their heights is 1 : 3, then the ratio of their volumes is

The cost of digging a pit of dimensions 4.5m × 2.5m × 2.5m at the rate of Rs 20 per cubic metre is

The volume of resulting cuboid formed when two cubes each of side 6 cm are joined end to end is

The number of litres that a cuboidal water tank of dimensions 6m × 5m × 4.5m can hold is

The surface area of a cuboid whose length, breadth and height are 15 cm, 10 cm and 20 cm respectively is

The difference between the total surface area and the lateral surface area of a cuboid of length 20 cm, breadth 10 cm and height 40 cm is