Question

please someone solve this question..​

Answer 1

Step-by-step explanation:

perimeter of the rectangle given = 240 cm

Let x cm be the length of the rectangle,

Let y cm be the length of the rectangle,

According to the question :

2(x+y)= 240

= x+y=120 (first equation)

Now,it's length is increased by 10% and it's breadth is decreased by 20%

So, the new length be = x+10/100x

=100x+10x / 100

= 110x / 100

= 11x / 10

And the new breadth be = y-20/100y

= 100y-20y / 100

= 80y / 100

= 8y / 10

with new length and breadth we get same perimeter.

So,

= 2(11/10x+8/10y)=240

= 11/10x + 8y = 1200 (second equation)

Now second equation-8x (first equation), we get

3x=240

= x = 80

Putting this value isn first equation,

y = 120 - 80 = 40

So, length = x = 80 cm

and breadth = y = 40 cm.

Answer 2

Answer:

here is your answer Aayush .. .. .. ..