How many bricks each of 25 cm × 10 cm will be required for paving a floor of a room 40 m × 30m
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first the area of 1 brick 25 ×10 = 250 cm
now we convert it in m 250÷100 = 2.5
now area of floor = 40 × 30 =1200
we 1200 ÷ 2.5 = 480
no.of bricks required are 480
now we convert it in m 250÷100 = 2.5
now area of floor = 40 × 30 =1200
we 1200 ÷ 2.5 = 480
no.of bricks required are 480
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