Question

The length and breath of rectangular field are in the ratio 4:3 . Its area is 6912 m sqaure. Find the cost of fencing the field at 2.50 per meter

Answer 1

let the ratio be x...so length is 4x and breadth is3x
area of rectangle =6912
length *breadth=6912
4x*3x=6912
x=24
now,length =96m,. breadth= 72m
perimeter of rectangle =2(l+b)
perimeter of rectangle =336 m

cost =336*2.25
cost =₹840