Q82 of 100 Page 312

In a rectangular plot, 5 square flower beds of side (x + 2) metres each have been laid (see figure given below). Find the total cost of fencing the flower beds at the cost of ₹ 50 per 100 metres:

perimeter of 1 square bed = 4(x+2)

perimeter of 5 square bed = 20(x+2)


Rate for 100 m = Rs. 50


Rate for 1 m = Rs.


Rate for 20(x+2) m =


Required expression = 10(x+2)


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