5. A cube of sugar is 2 cm wide. Calculate the num- ber of cubes in a box 720 cm². Calculate the amount of air in a room 6 m long, 5 m wide and 3 m high. The area of one side of a cuboid is 360 cm². What is the length, if the width is 1.5 cm? What is the volume of a container if it contains 12 boxes each 2.5 cm by 3 cm by 4.5 cm? A tank contains 4 500/ of water. Find the depth of the tank if its base area is 300 m².
