Question

the area of rectangle is 460 if the length is 15% more than the breadth what is the breadth of the rectangle

Answer 1

Let breadth = b

Length = 115/100 × b

Area = L × B

460 = 115/100 b ×b

Shifting the numbers to LHS

400 = b^2

b = 20

Answer 2

Given :

The area of rectangle is 460

if the length is 15% more than the breadth

To Find :

what is the breadth of the rectangle

Solution:

Let the breadth of rectangle be x

So, Length = 15% more than the breadth

Length = x+0.15x=1.15x

Area of rectangle =$Length \times Breadth = 1.15x \times x = 1.15x^2$

We are given that the area of rectangle is 460

So,$1.15x^2 = 460$

$x=\sqrt{\frac{460}{1.15}}$

x=20

Hence The breadth of rectangle is 20 m