the perimeter of rectangle is 240cm. if the length is increased by 10% and breadth is decreased by 20%, we get the same perimeter. find the length and its breadth of the rectangle
Answers
Answered by
4
2(1.1x+.80y)=240
1.1x+.80y=120
and 1.1x+1.1y=132
so, y= 12/.30 = 40..
x= 120-40=80
1.1x+.80y=120
and 1.1x+1.1y=132
so, y= 12/.30 = 40..
x= 120-40=80
Similar questions