Question

A rectangular garden is designed such that the length of the garden is twice its breadth and the area of the garden is $800m^2$. Find the length of the garden.

Answer 1

Given that,

Rectangular garden

Length of the garden = $2\times$ breadth

Let, the breadth of the garden = x

length of the garden = $2\times$ breadth

Length = $2x$

According to the question

Area of rectangle = $l\times b$

$200=2x\times x$

$2x^2=800$

$x^2=400$

$x^2=(20{)}^2$

$x=20$

Breadth of garden = $20m$

length of garden $=2\times$ breadth

$=2\times 20$

Length $=40mtr$