Question

the perimeter of a rectangular field is 240m and the length of the field is 20./. more than it's breadth find the length and breadth

Answer 1

let breadth be x,
length=20/100*x+x=6x/5
p=2(l+b)
240=2(6x/5+x)
240=2*11x/5
240*5=2*11x
1200=2*11x
1200/2=11x
600=11x
600/11=x
54.54=x