SavageBrother wrote:
A room is 480cm by 520cm
480x520 = 249600
n square, identical tiles, what is the value of n?
1) 40x40 would work
4x4 would work
I.
2) 12 tiles in 480cm, is 40cm a tile. Tile is square, 40x40.
S.
B.
One common mistake which many people make is they find the area like calculated here
480x520 = 249600 Here I wish to suggest reader that it is not a good practice because it may lead to wrong answer in a smart question. Here are the examples
If the dimensions of floor are 16 ft. and 23 ft.
then Area = 16x23 = 368
This area 368 sq.ft. is divisible by 4x4 i.e. a Square tile with Area 16 but square tiles of dimensions 4x4 can't cover such a floor without breaking and using the parts of tiles thereafter.So to judge whether the Dimensions of square tiles are acceptable we must make sure that each dimension of the floor must be divisible by each dimension of the square tile and result in an integer number which will communicate the number of tiles needed on that dimensioni.e. Number of tiles of Dimensions 4x4 needed to cover a floor of area of 360 X 480 should IDEALLY be calculated like this
On the Dimension 360, the Number of Tiled needed = 360/4 = 90
On the Dimension 480, the Number of Tiled needed = 480/4 = 120
i.e. Total Such tiles = 120*90 = 10800I hope it makes sense to other reader and they don't make any mistake of this type in a smart question