Question

The length and breadth of a rectangular field are in the ratio 3 ratio 2 if the area of the field is 3456 m square find the cost of fencing the field at rupees 4 per meter

Answer 1

here is your answer

let the length be 3x, breadth be 2x

now,

area=3x*2x

3456=6x square

3456/6=x squer

576root=x
24=x
so, length =3*24=72
breadth=2*24=48
now,
perimeter=2*(l+b)
=2*(72+48)
=2*120
240

now,

cost of fencing=240*4=₹960

hope this will help you

Answer 2

Let length be 3x

Breadth be 2x

Area of rectangular feild = L X B

3456 =(3x)X(2X)

3456 =6Xsquare

3456/6 = X square

576 = X square

Under root 576 = X

24 = X

Length=3x24=72

Breadth=24x2=48

Perimeter of rec =2(72+48)=240

Cost of fencing =240x4=960

May this help you

Any doubt means ask