the sides of a rectangular Park are in the ratio 5 ratio 4 and its area is 3380 m square find the cost of fencing the park at the rate of 75 per metre square
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Hey!
Let the length be 5x metre.
Let the breadth be 4x metre.
Area = 3380 sq metre.
By the problem,
5x×4x=3380
20x²=3380
x²=169
x=13
Hence, length = 13×5= 65 metre and breadth = 13×4= 52 metre.
Perimeter of the park = 2(65+52) = 234 metre.
Cost of fencing:
1 metre = ₹75
234 metre = ₹17550
Thank you!
Let the length be 5x metre.
Let the breadth be 4x metre.
Area = 3380 sq metre.
By the problem,
5x×4x=3380
20x²=3380
x²=169
x=13
Hence, length = 13×5= 65 metre and breadth = 13×4= 52 metre.
Perimeter of the park = 2(65+52) = 234 metre.
Cost of fencing:
1 metre = ₹75
234 metre = ₹17550
Thank you!
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