a road 90m long and 10 m wide is to be paved with bricks having length and breadth as 20cm and 7.5 cm respectively find the number of bricks required to pave the road
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Answer:
60,000 bricks required
Step-by-step explanation:
A road is rectangular in shape
It's length is 90m and breadth is 10m.
Area of rectangular road =length×breadth
=90×10=900 sq.m.
Because 1sq.m =10,000 sq.cm
Therefore,900 sq.m=9000000 sq.cm.
Area is 9000000 sq.cm of road.
Now,area of rectangular brick =length×breadth
=20×7.5=150 sq.cm
Total bricks required= area of road÷area of brick
=9000000÷150=60,000 bricks.
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