The document contains 5 math problems involving calculating volumes of 3D shapes: 1. Finding the height of a cone joined to a cylinder given the volumes is 231 cm^3. 2. Calculating the volume of a solid cone with a cylinder removed. 3. Finding the volume of a cylinder with a hemispherical section removed. 4. Determining the volume of a solid formed by joining a cone and hemisphere. 5. Calculating the volume of a container made of a cuboid and a cylindrical quadrant.