Question

A room is 4 m long and 3 m wide. Its floor is to be covered with rectangular
tiles of size 30 cm by 20 cm. Find the total cost of the tiles at the rate of
*10 per tile.​

Answer 1

Answer:

area of floor=400*300=120000cm square

area of tile =30*20=600cm square

number of tile=120000/600=200

cost= 2000 rs

Answer 2

Step-by-step explanation:

l= 4m or 400 cm

b= 3m or 300 cm

area of room = l×b

=( 400×300)cm^2

=120000cm^2

area of a tile= 30×20

=600 cm^2

no. of tiles

=120000/600

=200 tiles are required

cost = 200×10

=₹2000 ..