Question

square tiles of side 20cm are laid on the floor of a room 10 by 4.5m how many tiles will be needed? find the cost of putting the tiles at 131.40per metres

Answer 1

The area of one tile = 0.2*0.2= 0.04 m^2

Area of room = 10*4.5= 45 m^2

number of tiles = 45/0.04

cost of putting tiles = 131.4*45/0.04

Answer 2

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 = $Side^2$

                  = $0.2^2$

                  = $0.04 m^2$

Length of room = 10 m

Width of room = 4.5 m

Area of room = $Length \times Width$

                      = $10 \times 4.5$  

                     = $45 m^2$  

Number of tiles required = $\frac{45}{0.04}$

                                         = $1125$

Cost of putting tiles at 1 sq.m. = 131.40

Cost of putting tiles at 45 sq.m. = 131.40 *45 = Rs. 5913