Q116 of 131 Page 226

In a park of dimensions 20 m × 15 m, there is a L shaped 1m wide flower bed as shown in Fig. 9.61. Find the total cost of manuring for the flower bed at the rate of Rs 45 per m2.

Area of the flower bed = Area of the park – Area of the park other than the flower bed


= 20 × 15 – (15-1) × (20–1)


= 300 – 266 = 34 m2


Total cost of manuring for the flower bed at the rate of Rs 45 per m2 = 34 × 45 = Rs. 1530


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