answer the question step by step it is urgent please
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Answer:150
Step-by-step explanation:first we will convert side of square into cm
3m= 300cm
No. Of tiles = total area of ground/area of one tile
Total area of ground= 300*300
=90000cm^2
Area of each tile= 20*30=600cm^2
No of tiles= 90000/600 = 150
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