The length and breadth of a rectangular field are in ratio 3:2. If the area of the field is 3456 sq m. Find the cost of fencing the field at Rs.4 per meter.

Explanation

Given that:
Length of a rectangle field `=3x`
Breadth of a rectangle field `=2x`
Area `=3456 m^2`
`3x xx2x=3456 m^2`
`6x^2 = 3456 m^2`
`x^2 = 576 m^2`
`x=24 m`
Therefore, the length `=72 m`
Breadth `=48 m`
Perimeter of the rectangular field `=72+48=120 m`
Cost of 1 meter `=Rs.4`
Cost of 120 meter `=Rs.4xx120=Rs.480`.
This is the required solution.