Question

how many tiles each 25 cm by 20cm are required for the floor of a room 12m long and 9m wide​

Answer 1

Answer:

first find the area of the floor

which is 12*9

=108

and then find the area of tiles

0.25*0.2

.05

now

for the no. of tiles divide the area of floor by the area of tiles

we get the answer

108/.05

Answer 2

Answer: 2160 tiles

Step-by-step explanation:

area of tile= l x b

=> 25cm x 20cm

and area of floor = l x b

=> 12m x 9m => 1200cm x 900cm

1200 x 900/ 25 x 20

=> 2160