Question

the perimeter of a rectangular swimming pool is 356 meter. It's length is 4m more than twice its breadth.Find the dimensions of the pool.

Answer 1

Let the breadth be 'x'

Length = 2 + 2x

Now perimeter of a rectangle = 2(l + b)

2(l + b) = 154
2 ( 2 + 2x + x) = 154
2 ( 2 + 3x) = 154
2 + 3x = 77
3x = 75
x = 25 m

Required breadth = 25 m
Length = 2 + 2 x 25 = 52 m

Hope This Helps You!

Answer 2

let length be x and breadth be y
so, x = 4 + 2y
perimeter = 2x + 2y =356
x + y = 178
4 + 2y + y = 178
3y = 174
y= 58 and x=120