Question

A lane 150m long and 9m wide is to be paved with bricks, each measuring 22.5cm by 7.5cm. How many bricks are required?​

Answer 1

area of lane=l×b

=150×9

=1350m^2

=13500000cm^2

area of brick=l×b

=22.5×7.5

=168.75cm^2

no. of bricks required=area of lane/area of brick

=13500000/168.75

=80000 no. of bricks will require

Answer 2

Step-by-step explanation:

area of length equal Allen to be 150 into night equal 1350 square equal 135000 square area brick equal l into be equal 22.5 into 7.5 equal 168. 75 cm square find number of bricks required equal area of length and area of bricks 1350000 by 168.75 equal to 80000 equal 80000 bricks will be required