Question

the length of a rectangle is three times its width. if the perimeter of the rectangle is 120 Meters. find the length and breadth of the rectangle.

Answer 1

Hey !!




let width of rectangle be X m.


Length of rectangle = 3X m.



Perimeter of rectangle = 120 m



2 ( L + B ) = 120 m


2 ( 3X + X ) = 120



4X = 60



X = 60/4 = 15 m



Breadth of rectangle = X = 15 m


And,

Length of rectangle = 3X = 3 × 15 = 45 m.

Answer 2

Let the width= x
Length= 3x

Perimeter of rect=120
2(l+b)=120
2(x+3x)=120
2*4x=120
8x=120
X=120/8=15

So, length will be =3x=3*15=45
Width=x=15