Question
The ratio of the side of a square room to the breadth of
a rectangular wall is 4:5. The length of the rectangular wall exceeds its breadth by 29 meters, and the area of the square room is 784 m². Calculate the cost per meter of fencing the rectangular wall, given that the total fencing cost is Rs. 2970.Solution
Area of the square room=784 m2 Side of the square=√784=28 m Breadth of the rectangle=28*5/4=35 m Length of the rectangle=35+29=64 m Perimeter of rectangle=2*(64+35) =198 m The cost of fencing the rectangular wall per meter=2970/198 = Rs.15
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