Question

the length and breadth of a rectangular field are in ratio 9:5. if the area of the field is 14580 sq m , find the cost of surrounding the field with a fence at the rate of 3.25rupees per metre .​

Answer 1

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Answer 2

Answer:

Let length and breadth=9x and 5x

area=14580(givenl)

l*b=14580

9x*5x=14580

45x²=14580

x²=324

x=18....

hence length=9*18=162.....

breadth=5*18=90.........

Perimeter=2(l+b)

2(90+162)

2*252=504m

Now,cost of fence per m=ruppee 3.25

so cost of fence for 504m=504*3.25=1638

Hence answer is ruppee 1638

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