Question

The ratio of the length and the breadth of a park is 5:4.if the breadth of the park is is 180m,find its length.

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Step-by-step explanation:

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Let the common factor be x

The ration of l:b=5;3

So the length is 5x

The breadth is 3x

The perimeter is 2(l+b)=128

5x+3x=64

8x=64

x=8

So the length is 5(8)=40

The breadth is 3(8)=24

The area is 40×24=960cm

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