if length and breadth of a rectangular field are in the ratio 9 ratio 5 if the area of the field is 14580 square metre find the cost of surrounding the field with a penis @ rupees 3.25 permit
Answers
Answered by
0
ans is rupees 1638
because length is 162 and bredth is 90
and perimeter is 504
we can find it
because length is 162 and bredth is 90
and perimeter is 504
we can find it
Answered by
1
Let the length of rectangle be 9x and its breadth be 5x
So,
Area = l × b
⇒ 14580 = 9x × 5x
45x2 = 14580
x2 = 14580/45 = 324
x = √324
x = 18
Hence,
Length = 9 × 18 = 162 m and Breadth = 5 × 18 = 90 m
Now, Perimeter = 2(l + b)
= 2 (162 + 90) = 2(252)
= 504 m.
Therefore, cost for fencing the surrounding 504 m at the rate of ₹3.25 per metre = ₹(504 × 3.25) = ₹1638
Similar questions