MathematicsHow many paving stones each measuring 2.5m×2m are required to pave a rectangular courtyard 30 m long and 16.5 m wide?

How many paving stones each measuring 2.5m×2m are required to pave a rectangular courtyard 30 m long and 16.5 m wide?


  1. A
    105
  2. B
    89
  3. C
    99
  4. D
    84 

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    Solution:

    Given:
     In this, ABCD resembles the rectangle with length 30 m and breadth 16.5 m.
    Area of the rectangle with length ‘l’ and breadth ‘b’ is: Thus, area of the paving court as: From the figure, EFGH resembles the rectangle with length 2.5 m and breadth 2 m.
    So, we get the area of paving stones as: The number of paving stones required:  
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