How many bricks each of 25 cm × 10 cm will be required for paving a floor of a room 40m × 30 m
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Answer:
Total 480 bricks
Step-by-step explanation:
area of the the brick=25×10
=250sq.cm
area of the room=40×30
=1200sq.m
convert the metre into centimetres
1200sq.m×100=120000sq.cm
to find the no. of bricks needed
120000÷250
=480
ans. 480 bricks needed.
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