Question

The length and breadth of a rectangle 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 rs of 3.25 per metre

Answer 1

See the attached file

Answer 2

Ratio given = 9:5
length = 9x
breadth = 5x
perimeter = 2(l+b)
2(9x+5x)
2(14x)
28x   = 14580
x= 14580/28
x = 520.71 m

cost of 1m fencing = 3.25
520.71*3.25


= rs1692.30

hope it helps