The sum of the volumes of a cylinder and a cone with equal base and height is 120 cubic decimeters, and the volume of a cylinder is 120 cubic decimeters______ Cubic decimeter, the volume of a cone is______ Decimeter

The sum of the volumes of a cylinder and a cone with equal base and height is 120 cubic decimeters, and the volume of a cylinder is 120 cubic decimeters______ Cubic decimeter, the volume of a cone is______ Decimeter

Because the volume ratio of the cylinder with equal base and height to the volume of the cone is 3:1, 3 + 1 = 4, the volume of the cylinder is 120 △ 4 × 3 = 90 (cubic decimeter), and the volume of the cone is 120-90 = 30 (cubic decimeter); answer: the volume of the cylinder is 90 cubic decimeter, and the volume of the cone is 30 cubic decimeter