SOLUTION: the length of a room is three and half times its width. if the perimeter of the floor of the room is 90 m , find the length and width of the room.

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: the length of a room is three and half times its width. if the perimeter of the floor of the room is 90 m , find the length and width of the room.       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 751035: the length of a room is three and half times its width. if the perimeter of the floor of the room is 90 m , find the length and width of the room.
Answer by dkppathak(439) About Me  (Show Source):
You can put this solution on YOUR website!
let length is L
width is B
L= 7/2 B
P =2(L+B)
as per condition
90= 2(7/2B+B)
90=9/2 B
B = 90x2/9 =20m
length =7/2 of 20 =70m
ANSWER
L=70m
B=20m