Question

If the ratio of the length to the breadth of a rectangle is 5:3 and its perimeter is 144m, find the length of the rectangle. Pls help me in this!

Answer 1

sum of ratios=5+3
=8
length=5/8*144
90
breadth= 3/8*144
48

Answer 2

Hey mate!!

let the length and breadth be 5x and 3x respectively,

A/Q

=> 2(l+b) = perimeter of rectangle.

=> 2(l+b) = 144

=> 2(5x+3x) = 144

=> 2×8x = 144

=> 16x = 144

= > x = 9

therefore, length = 5x I.e., 5×9 = 45 m ,Answer!!

hope this helps....