A road 90m long and 10m wide is to be paved with bricks having length and breadth as 20cm and 7.5cm respectively. Find the number of bricks required to pave the road .
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Step-by-step explanation:
Length of the road= 90m= 9000cm
Bredth of the road= 10m= 1000cm
Area of the road= l× b= (9000× 1000) cm²= 90,00,000 cm²
length of the bricks= 20cm
breadth of the bricks= 7.5cm
area of the brick= (20×7.5) cm²= 150.0cm²= 150cm²
Therefore no. of bricks required to pave
= 90,00,000 cm²/ 150cm²
=60,000
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