Question

the area of a square gardenis 400 m ^2.there is a path 2.5 M wide running all around inside it .find the cost of levelling the path at RS 30 per square metre ​

Answer 1

Area of square gardens = 400m^2

Then, side =

$\sqrt{400}$

=20m is side of garden from out side

But there is a path of 2.5m all around inside it

$we \: have \: to \: subtract \: 2.5 + 2.5 \: from \: 20m \:$

{(20-(2.5+2.5)} m =15m is side of new square

$area \: of \: path \: = {area \: of \: garden} \: - area \: of \: new \: square$

Area of path = {400 - (15×15)}m^2

= {400-225}m^2

=175 m^2

Cost of path per Rs 30

=175 ×30

=5250 Rs

Hope it will be true

If any mistakes in this question

Then sorry