The perimeter of a rectangular park is 178 more than the length of the rectangular park The cost of ...........

Quantitative Aptitude ( CCS) Mensuration 2D

The perimeter of a rectangular park is 178 more than the length of the rectangular park. The cost of fencing the boundary of the park at the rate of Rs. 7 per m is Rs. 1708. A path has been made inside the park of width 4 m along its boundary. Find the cost of paving the path with marbles at the rate of Rs. 9 per m^2.

Rs. 7700

Rs. 8208

Rs. 7454

Rs. 8520

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Explanation:

Let the breadth be x meter.
Perimeter of the park = 1708/7 = 244 m
Length = 66 m
2*(66+x) = 244
=> x = 56 m
Area of path = 66*56 – 58*48 = 912 m²
Required cost = 912*9 = Rs. 8208