A marble tile measures 12cm x 10cm.how many tiles will be required to cover a wall of size 4m by 3m? Also ,find the total cost of the tiles at ₹22.50per tile.
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as ar of wall = 400*300
===== 120000 cm square
tile area = 12*10 = 120
no of tile = 120000/120
=1000 tiles
cost of a tile =22.50 rs
cost of 1000 tiles= 22.50*1000
= 22500 rs
===== 120000 cm square
tile area = 12*10 = 120
no of tile = 120000/120
=1000 tiles
cost of a tile =22.50 rs
cost of 1000 tiles= 22.50*1000
= 22500 rs
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