Question

square titles of side 20cm are laid on the floor of a room 10m by 4.5 m. how many tiles will be needed? find the cost of putting the titles at ₹1.40 per tile( please answer step by step)​

Answer 1

Step-by-step explanation:

Area of tile=20*20cm

=400cm²

Area of floor of room=10m*4.5m

=1000cm*450cm

=450000cm²

Number of tiles needed=Area of floor in cm² /area of single tile

=450000cm²/400cm²

=1125

So, we need 1125 tiles to cover the whole floor

Now,

The cost of putting each tile = 1.40 Rs

The cost of 1125 tiles = 1125*1.40

=1575 Rs