What is the number of square tiles of size 10 cm required for decorating a wall 12m× 18m?
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Answer:
Area of floor = 4×3 = 12 sqm
Tile each side is 20 cm = 0.20m
Area of tiles is 0.20×0.20 =0.04 sqm
No of tiles = 12/0.04 = 300 nos
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