How many tiles, each of area 400cm2 will be needed to pave a footpath which is 2 wide and surrounds a grass plot 25m long of 13m wide
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length of footpath = 25m-4m=21m
B = 13m -4m = 9m
area = 21m ×9m=189m² =1890000cm²
number of tiles = 1890000÷400= 4675 ans.
B = 13m -4m = 9m
area = 21m ×9m=189m² =1890000cm²
number of tiles = 1890000÷400= 4675 ans.
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