Question

A lane 150 m and 9 m width is to the Be Pavel with bricks each measuring 22.5 cm by 7.5 cm. find the number of required.

Answer 1

first we have to convert m into cm
150m=150*100=15000cm
9m=9*100=900cm
area of lane=15000*900cm
=13500000cm
area of one brick=22.5*7.5cm
=168.75cm
number of bricks required=area of lane/area of one brick
=13500000/168.75
=80000bricks required

Answer 2

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