Q105 of 131 Page 226

The dimensions of a plot are 200 m × 150 m. A builder builds 3 roads which are 3 m wide along the length on either side and one in he middle. On either side of the middle road he builds houses to sell. How much area did he get for building the houses?


Area of the plot = 200 × 150 = 30,000 m2


Area of roads = 3 × (200 × 3) = 1,800 m2


Area available for building the houses = Area of the plot - Area of roads


= 30,000 – 1,800 = 2,8200 m2


∴ Area available for building the houses = 2,8200 m2


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