The length and breadth of a rectangular field are in the ratio 9 : 5. If the area of the field is 14580 square metre, find the cost of surrounding the field with a fence at the rate of Rupees 3.25 per metre?
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4
Given:-
Length and breadth of rectangular field are in ratio 9:5.
Area of field is 14580 m sq.
To find:-
Cost of fencing the surrounding of field.
Solution:-
Let, Length of rectangular field be 9x.
And Breadth of rectangular field be 5x.
Areaofrectangle=length×breadth[/tex]
Put area, length and breadth of rectangular field in formula:
2
45
14580
=x
2
2
x=18
⋆
We have taken,
Length = 9x = 9×18 = 162 m
Breadth = 5x = 5×18 = 90 m.
Answered by
9
Answer:
Explanation:
Let the length of the field be 9x and breadth be 5x.
length=162m
breadth=90m
Perimeter = 2(l+b)=2(162+90)=2(252)=504m
Therefore,
Cost of fencing = 504×3.25=1638 Rs.
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