Question

The length and breath of a rectangular field are in the ratio 7:4 if it's perimeter is 440 find its length and breath Aldo find the cost of fencing it rupees 150 per meter

Answer 1

Step-by-step explanation:

2×l+b

perimeter

let length and breadths be x

2×(7x+4x)=440

2×11x=440

11x=440/2

11x=220

x=220/11

x=20

length=7x=7×20=140

breadth=4x=4×20=80

perimeter =440

cost=150×440

= rupees66000