Question

a tile measures 10cm * 10cm. How many such tiles are required to cover a wall 4m * 2.5m?​

Answer 1

Answer:

1000

Step-by-step explanation:

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:

10 tiles .

Step-by-step explanation:

The area of tile = 10 X 10 = 100 CM2

The area of wall = 4 X 2.5 = 10 m = 10 X 100 = 1000 cm2

No. of tiles = 1000/100

= 10 tiles