Question

9. 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:

tital surface area=l×b=400×300=120000cm²

area of tile=30×20=600cm²

no.of tiles=area of floor/area of one tile

no.of tiles=120000/600=200 tiles

total cost=cost per tile×no.of tiles

total cost=10×200=2000

Answer 2

Answer: area of floor=400*300=120000cm square

area of tile =30*20=600cm square

number of tile=120000/600=200

cost= 2000 rs

Step-by-step explanation: