SOLUTION: If Length of a rectangle is increased by 20% and width is decreased by 20% , then area will be ?
Algebra.Com
Question 550052: If Length of a rectangle is increased by 20% and width is decreased by 20% , then area will be ?
Found 2 solutions by plover, MathTherapy:
Answer by plover(15) (Show Source): You can put this solution on YOUR website!
Let the original length and breadth be l and b respectively . Hence initial area is lb
hence the new length is = =
hence new breadth will be ==
hence new area is =
Hence the area decreases .
Decrease in area = =
hence % decrease == %
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
If Length of a rectangle is increased by 20% and width is decreased by 20% , then area will be ?
Let length = L, and width = W
Then, original area = LW
Increasing length by 20% makes the new length 1.2L
Decreasing width by 20% makes the new width .8W
New area = 1.2L(.8W), or .96LW
This means that the area would DECREASE by 4% (LW - .96LW)
Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
RELATED QUESTIONS
if the length of a rectangle is increased by 20% and the width is decreased by 20%then... (answered by ankor@dixie-net.com)
if the length of a rectangle is increased by 20% and width of the same rectangle is... (answered by josgarithmetic)
if the length of a rectangle is increased by 30% and the width is decreased by 20%, then... (answered by ankor@dixie-net.com)
If the length of a rectangle is increased by 30%and the width is decreased by 20%,then... (answered by Alan3354)
If the length of a rectangle is increased by 40% and its width is decreased by 20%, what... (answered by checkley77)
If lenght of a rectangle is increased by 30% and the width is decreased by 20% then by... (answered by KMST)
if the length of a rectangle is increased by 120%and its width is decreased by 20%,what... (answered by nerdybill)
The length of a rectangle is three times its width. If the
length is decreased by 20 ft. (answered by rothauserc)
if the length of a rectangle is increased by 10% and the area is unchanged , then by what (answered by Mathtut,ankor@dixie-net.com)