Question

How many bricks each of 25cm×10cm will be required for paving a floor of a room 40m×30m?

Answer 1

Answer:

48000 bricks

Step-by-step explanation:

area of brick is 25×10=250 cm²

area of floor is 40×30=1200 m²=1200*10^4 cm²

thus, $No. of bricks=\frac{Area of floor}{Area of each brick}$

=12000000/250

=48000 bricks

hope it helps