To cover the floor of a room, you need to buy square tiles, 40 cm long side. One package contains 10 tiles.

To cover the floor of a room, you need to buy square tiles, 40 cm long side. One package contains 10 tiles. How many packages do you need to buy if the volume of the room is 96m cubed and the height is 3m?

1. Since the volume of the room is equal to the area multiplied by the height, we find the area of the given room by dividing its volume by the height.

96/3 = 32 m ^ 2.

2. Now we find out what area one tile covers.

40 * 40 = 1600 cm ^ 2 or 0.16 m ^ 2.

3. Let’s calculate what area can be covered using one package of 10 pieces.

0.16 * 10 = 1.6 m ^ 2.

4. Find out how many packages of tiles are needed to cover the floor in the room.

32 / 1.6 = 20 packs.

Answer: To cover the floor in a given room, you need to buy 20 packages of tiles.