Answer:
Area of the square plot \[=25\times 25\,{{m}^{2}}=625\,{{m}^{2}}\] Area of the house \[=20\times 15\,{{m}^{2}}=300\,{{m}^{2}}\] \[\therefore \] Area of the garden = Area of the square plot ? Area of the house \[=625\,{{m}^{2}}-300\,{{m}^{2}}\] \[=325\,{{m}^{2}}\] \[\because \] The cost of developing the garden per square metre = Rs 55. \[\therefore \] Total cost of developing the garden \[=Rs\,\,325\times 55\] = Rs 17,875.
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