A rom is 13.6m long and 6.4 m wide. Its floor has to be paved with square marble tiles of side 80 cm. How many tiles will be required
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area of floor=(13.6×6.4)m^2=87.04m^2
area of 1marble=0.8×0.8m^2=0.64m^2
no.of tiles required=87.04/0.64=136
area of 1marble=0.8×0.8m^2=0.64m^2
no.of tiles required=87.04/0.64=136
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