The volume of a bottle is 30 cubic decimeters. There is some water in the bottle. The height of the bottle is 15 cm. The rest of the bottle is 5 cm when it is placed upside down. How many cubic minutes of water can be filled

The volume of a bottle is 30 cubic decimeters. There is some water in the bottle. The height of the bottle is 15 cm. The rest of the bottle is 5 cm when it is placed upside down. How many cubic minutes of water can be filled


Cold winter bubbles,
30 × 15 / (15 + 5) = 22.5 (cubic decimeter)



How to make a cube of 1 cubic decimeter?


1. As shown in the figure, cut out a shape similar to "ten" with the side length of each square of 1 decimeter
2 tile the cut shape and fold the paper upward according to the black line in the figure
3. The red dotted line is also folded upward. Each trapezoid is used for gluing and fixing. If it is not necessary, it can be cut off
Because the length of each side of the cube is one decimeter, the volume of the cube is one cubic decimeter
Hope to help you



A packing box is 30 cm long, 25 cm wide and about 12 cubic decimeters in volume. AI Dongchen wanted to use it to pack a glassware 28 cm long, 18 cm wide and 20 cm high
A. Can b. can C. not sure


12 cubic decimeter = 12000 cubic centimeter, the height of packing box: 12000 / (30 × 25), = 12000 / 750, = 16 (CM); because 28 cm < 30 cm, 18 cm < 25 cm, 20 cm > 16 cm, although the length and width of glassware are less than the length and width of packing box, the height is higher than the height of packing box, so it cannot be packed