SOLUTION: Please help me with this problem,
What change is made in the area of a rectangle by decreasing its length and increasing its breadth by 5%?
Looking forward for your help sir/ma
Algebra ->
Surface-area
-> SOLUTION: Please help me with this problem,
What change is made in the area of a rectangle by decreasing its length and increasing its breadth by 5%?
Looking forward for your help sir/ma
Log On
Question 685690: Please help me with this problem,
What change is made in the area of a rectangle by decreasing its length and increasing its breadth by 5%?
Looking forward for your help sir/ma'am.
Thanking you,
Shambhavi Pandey
Class-9
Email-shambhavi.star98@gmail.com Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let the length be x
so the length is decreased by 5%
(x-(5/100)*x) is the new length
=95x/100
let breadth be y
it is increased by 5%
so the new breadth = y+(5y/100) = 105y/100
Area after the change = 95x/100 * 105y/100
Area before the change = xy
change in area
=
change in area/ area before change *100 = percentage change
/ *100
0.025% change
