Square tiles of side 20cm are to be laid on the floor of a room 10 metre by 4.5 metre. How many tiles will be needed? Find the cost of putting the tiles at rupees Rs 131.40 per tile.
Answers
Answer:
1125 tiles will be needed to laid on the floor. Cost of putting the tiles is Rs.147825
Step-by-step explanation:
Given :
Dimensions of the room is 10 m.× 4.5 m. It means length of the room= 10 m.
and breadth of the room= 4.5 m.
Area of the room = area of rectangle=length × breadth
= 10 × 4.5
= 45 sq. m.
Length of side of square tile = 20 cm.
Area of room is in sq.m. so we convert length of side of square tile in m. which is in cm.
1 cm. =1/00 m.
20 cm. = 20/100=0.2 m.
Area of 1 tile = Area of square= side × side
=0.2 × 0.2
=0.04 sq. m.
Number of tiles needed=total area of room / area of 1 tile
= 45/0.04
=1125
Cost of putting 1 tile =Rs.131.40
∴ Cost of putting 1125 tiles= Cost of putting 1 tile × no.of tiles
=131.40 × 1125
=147825 Rs.
Answer:
Number of tiles = 1125
Total cost = Rs. 5913
Step-by-step explanation:
Side of square tile = 20 cm = 0.2 m
Area of tile =
=
=
Length of room = 10 m
Width of room = 4.5 m
Area of room =
=
=
Number of tiles required =
=
Cost of putting tiles at 1 sq.m. = 131.40
Cost of putting tiles at 45 sq.m. = 131.40 *45 = Rs. 5913