Question

the measure of a tile is 10 cm x 10 cm. How many such tiles are required to
cover a wall measuring 4 m by 2.5 m?​

Answer 1

answer:

dimension of tile = 10*10 sq cm

area of tile = 100 sq cm

converting the area in m = 100/(100*100)

= 0.01 sq m

dimension of wall = 4m * 2.5m

area of wall = 10 sq m

no. of tiles = (area of wall) / (area of tile)

= 10/0.01

= 1000

no. of tiles required = 1000

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Answer 2

Answer:

1000 tiles

Step-by-step explanation:

measure of tile 10 cm = 0.1 m

Area of tile = side ²

A = 0.1 x 0.1

A = 0.01 m²

Area of Wall = l x b

A = 4 x 2.5

A = 10 m²

no of tiles = Area of wall / Area of tile

No. of tile = 10/ 0.01

No. of tile = 1000 tiles