A road 90 m long and 10 m wide is to be paved with bricks having length and breadth as 20 cm and 7.5 cm respectively. Find the number of bricks required to pave the road.
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Answer:
Area of road = 90×10 = 900m²
Area of bricks = 20/100 × 7.5/100 = 15/10000
Total bricks = Area of road/Area of bricks
= 900×10000 / 15 = 600000bricks
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