Question

The perimeter of a rectangle is 240 cm .If its length is decresed by 10% and breath is increased
by 20% .we get the same perimeter. Find length and Breath
?

Answer 1

 perimeter of a rectangle=2(l+b)
 length=10% of 240= 24
length=240-24
 breadth=20% of 240=48
 breadth=240+48