Question

garden shaped like rectangle. perimeter is 432 ft. lenght is 8 tmes as long as width. find length and width.

Answer 1

let width be =b and then length l=8*y
2(l+b)=432
2(8b+b)=432
b=36
and l=288

Answer 2

gauthami, you set up the problem right but did the algebra wrong:
2(8b+b)=432
9b=216
b=24 (width)
8b=l=192 (length)
check your work:
2(192+24)=432 :)