Question

A lane is 150 m long and 9 m wide is to be paved with bricks each measuring 22.5 cm by 7.5cm ? Find the no of bricks required.

Answer 1

No of bricks required ate 8000

Answer 2

150m=150×100=15000cm ,9m=900cm now, no. of bricks=area of lane÷area of bricks =80000