A marble tiles measures 10cm / 12cm. How many tiles will be required to cover a wall of size 3m / 4m?


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Area of marble tiles = l*b
                                 = 10*20
                                 = 200 sq.cm OR 2 sq.m

Area of wall = l*b
                     = 3*4
                    = 12 sq.m

Number of marble tiles required = 12/2
                                                     = 6 tiles
Hence, 6 tiles are required to cover the wall.
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