Question

how many bricks 20×25 cm will be required to pave the hoor of a room6×5m?

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Answer 1

Total area of floor = 6m x 5m = 600cm x 500cm = 300000 cm²

Total area of one brick = 20cm x 25cm = 500 cm²

No. of bricks required to pave the floor of the room = Total area of the floor/Total area of the brick

= 300000cm²/500cm²

=600 bricks