Answer:
£228.
Step-by-step explanation:
We know that each tile is 20 cm by 20 cm, which works out to be an area of 400 square cm.
The floor is 3 m by 5 m, which means it is 300 cm by 500 cm. 300 * 500 = 150000 square cm in area.
To find how many tiles are necessary, we need to find out the area of the floor divided by the area of the individual tiles.
150,000 / 400 = 1,500 / 4 = 750 / 2 = 375
So, to cover the floor, you will need 375 tiles.
Since tiles come in boxes of 10, you will need to find what is 375 divided by 10 so you can know how many boxes to buy.
375 / 10 = 37.5
Since you absolutely NEED 375 tiles to cover the floor, you need that half of a box, so you will buy 38 boxes of tiles.
Each box costs £6. 38 * £6 = £228. And that is your total cost!
Hope this helps!
